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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
NVIDIA GeForce RTX 4070 (12 GB)
Sweet-spot 1440p / entry 4K card. 12 GB GDDR6X, DLSS 3 frame gen, 200W TGP. Pairs well with 850W PSUs and any 12-pin adapter.
Kingston Fury Beast 16 GB DDR5-5600 (single)
16 GB DDR5 stick, 5600 MT/s, CL40. On-die ECC. Two = 32 GB dual-channel — the AM5 / Z790 sweet spot.
G.Skill Ripjaws V 16 GB (2×8) DDR4 3600
Faster sub-timings than 3200 kits, CL16. Sweet spot for AM4 (Ryzen 5000) IF performance.
G.Skill Trident Z5 RGB 32 GB (2×16) DDR5 6000
Sweet-spot AM5 kit at 6000 MT/s, CL30. Tall RGB heatspreader — check clearance with large air coolers.
Out of stockCorsair Vengeance LPX 16GB (2x8) DDR4-3600
Dual-channel 16 GB DDR4-3600 CL18 kit. Sweet spot for AM4 + Z690 DDR4 boards.
Out of stockCorsair Vengeance 32GB (2x16) DDR5-6000
Dual-channel DDR5-6000 CL36 kit. AM5 + Z790 sweet spot speed.
BenQ MOBIUZ EX271 27-Inch QHD 180Hz Fast IPS Gaming Monitor
[Monitor] BenQ MOBIUZ EX271 27-Inch QHD 180Hz Fast IPS Gaming Monitor Level up your gaming experience with 2560 x 1440 QHD resolution, 180Hz refresh rate, 1ms MPRT response time, and AMD FreeSync Premium. Features HDRi intelligent auto-brightness tuning and built-in 2.1 channel treVolo sound with integrated subwoofer. ⭐ Key Features - 27" QHD (2560 x 1440) Fast IPS panel - Ultra-smooth 180Hz refresh rate with 1ms MPRT - Proprietary HDRi technology optimizes HDR images based on room lighting - 2.1 channel treVolo speakers with 5W woofer and custom audio modes - Light Tuner with 20 color level adjustments to spot hidden enemies 📋 Technical Specifications - Panel: 27" Fast IPS - Refresh Rate: 180Hz - Response Time: 1ms (MPRT) / 2ms (GtG) - FreeSync: AMD FreeSync Premium - Video Ports: 2x HDMI 2.0, 1x DisplayPort 1.4 📦 Package Includes - 1 x BenQ MOBIUZ EX271 Gaming Monitor - 1 x Ergonomic Tilt/Swivel Stand, DP Cable, Power Cable
Out of stockMLX90640 Thermal Camera Module (32x24)
32×24 pixel IR thermal sensor, I²C, -40 to 300°C. Diagnose PCB hot spots.
26650 Battery Holder / Battery Spacer 2×1 – 26.3mm Bore Diameter
[Lithium Battery Holder] 26650 Battery Holder / Battery Spacer 2×1 – 26.3mm Bore Diameter The 26650 Battery Holder / Battery Spacer 2×1 is a cylindrical battery spacer designed to securely arrange 26650 lithium-ion battery cells while building multi-cell battery packs. Made from flame-retardant ABS+PC material, it provides a strong and stable structure while allowing air circulation around the cells. The holder features interlocking slots on the edges, allowing multiple spacers to be joined together to create different battery-pack sizes and configurations. After welding nickel strips, the assembled battery pack can achieve a solid and reliable structure without requiring additional connecting hardware. ⭐ Key Features Designed for 26650 cylindrical lithium-ion cells 2 × 1 configuration 26.3mm bore diameter Made from flame-retardant ABS+PC material High-temperature resistant construction Crack-resistant design Interlocking slots for connecting multiple spacers Allows flexible battery-pack configurations Provides mechanical support for battery cells Helps maintain proper spacing between cells Suitable for high-current battery-pack construction Helps improve battery-pack stability and reliability Allows airflow around the cells for heat dissipation 📋 Technical Specifications Product Type: Battery Holder / Battery Spacer Compatible Cell: 26650 cylindrical battery Configuration: 2 × 1 Number of Cells: 2 Bore Diameter: 26.3mm Material: Flame-retardant ABS+PC Construction: Interlocking modular design Mounting: Multiple spacers can be joined together Application: Lithium battery pack assembly Cell Type: Cylindrical Li-ion cells 🔧 Applications 26650 lithium-ion battery packs E-bike battery packs Electric scooter battery packs Electric vehicle battery packs Power-tool battery packs DIY high-current battery packs UPS battery systems Solar energy storage packs Portable power stations Robotics battery packs Custom lithium battery assemblies 🛠️ How to Use The spacer is designed to hold two 26650 cells in a 2×1 arrangement. Multiple spacers can be connected through the slots provided around the edges to create larger battery-pack configurations. For a complete battery pack: Cell → Spacer → Nickel Strip Welding → Additional Spacers → Battery Pack For mechanical support, spacers can be positioned at the top and bottom of the cells. Important: For each individual battery cell, 2 spacers are recommended—one at the top and one at the bottom. 💡 Advantages Simple Assembly: Easy to arrange cylindrical cells. Flexible Design: Multiple spacers can be interconnected to create different pack shapes. Strong Construction: Helps keep cells firmly positioned. Heat Dissipation: Provides spacing between cells and allows airflow. Reliable Battery Pack: Helps make the completed pack mechanically stable. Suitable for Complex Packs: Useful for custom battery configurations, including e-bike and high-current applications. ⚠️ Important Notes This product is only a battery holder/spacer; batteries are not included. The 26.3mm bore is intended for compatible 26650 cells. Check your actual cell diameter before purchase. Do not force oversized cells into the holder. Battery cells should be properly insulated and securely assembled. Use suitable nickel strip and an appropriate spot-welding method. Use a suitable BMS/protection system for the completed lithium battery pack. Battery cells should be properly matched before assembling a multi-cell pack. 2 spacers are recommended per individual cell, one on each end. Keep the battery assembly away from excessive heat, moisture and physical damage. 📦 Package Includes 1 × 26650 Battery Holder / Battery Spacer – 2×1, 26.3mm Bore Diameter Note: Battery cells, nickel strips and BMS are not included.
Nickel Strip 0.12mm × 5mm 1P Plane Coated Nickel Welding Strip for 18650 Lithium Battery Pack – 1 Meter
[Nickel Strip] The Nickel Strip 0.12mm × 5mm 1P Plane Coated Nickel Welding Strip is specially designed for assembling and repairing 18650 lithium battery packs and other rechargeable battery modules. Made from nickel-coated steel, this strip provides a strong mechanical bond, good electrical conductivity, and excellent weldability. Its flat 1P plane design ensures stable current flow and reliable cell connections. The nickel coating protects against rust and corrosion, making it suitable for long-term use in power banks, e-bike battery packs, solar storage systems, UPS batteries, and DIY lithium battery projects. Supplied in a convenient 1 meter length, this strip is easy to cut, bend, and shape according to your battery pack layout. 🔹 Key Features Made from nickel-coated steel for strength and durability Size: 0.12mm thickness × 5mm width Flat 1P plane strip design Good electrical conductivity and strong weld joints Excellent for spot welding lithium battery cells Corrosion-resistant nickel coating Easy to cut, bend, and form Suitable for 18650, 21700, 26650 lithium cells 🔹 Technical Specifications Material: Nickel-coated steel (Coated Nickel) Thickness: 0.12 mm Width: 5 mm Type: 1P Plane Flat Strip Length: 1 Meter Color: Silver Application: Spot welding for lithium battery packs Compatible Cells: 18650, 21700, 26650 and similar cylindrical cells Conductivity: Good Corrosion Resistance: High (nickel-coated surface) 🔹 Applications 18650 lithium battery pack assembly Power bank manufacturing and repair E-bike and electric vehicle battery packs Solar battery storage systems UPS and inverter battery packs DIY lithium battery projects Battery repair and maintenance 🔹 Package Contents 1 × Coated Nickel Welding Strip (0.12mm × 5mm, Length: 1 Meter)
Nickel Strip 0.12mm × 4mm 1P Plane Coated Nickel Welding Strip for 18650 Lithium Battery Pack – 1 Meter
[Nickel Strip] The Nickel Strip 0.12mm × 4mm 1P Plane Coated Nickel Welding Strip is specially designed for assembling and repairing 18650 lithium battery packs and other rechargeable battery modules. Made from nickel-coated steel, this strip provides a strong mechanical bond, good electrical conductivity, and excellent weldability. Its flat 1P plane design ensures stable current flow and reliable cell connections. The nickel coating protects against rust and corrosion, making it suitable for long-term use in power banks, e-bike battery packs, solar storage systems, UPS batteries, and DIY lithium battery projects. Supplied in a convenient 1 meter length, this strip is easy to cut, bend, and shape according to your battery pack layout. 🔹 Key Features Made from nickel-coated steel for strength and durability Size: 0.12mm thickness × 4mm width Flat 1P plane strip design Good electrical conductivity and strong weld joints Excellent for spot welding lithium battery cells Corrosion-resistant nickel coating Easy to cut, bend, and form Suitable for 18650, 21700, 26650 lithium cells 🔹 Technical Specifications Material: Nickel-coated steel (Coated Nickel) Thickness: 0.12 mm Width: 4 mm Type: 1P Plane Flat Strip Length: 1 Meter Color: Silver Application: Spot welding for lithium battery packs Compatible Cells: 18650, 21700, 26650 and similar cylindrical cells Conductivity: Good Corrosion Resistance: High (nickel-coated surface) 🔹 Applications 18650 lithium battery pack assembly Power bank manufacturing and repair E-bike and electric vehicle battery packs Solar battery storage systems UPS and inverter battery packs DIY lithium battery projects Battery repair and maintenance 🔹 Package Contents 1 × Coated Nickel Welding Strip (0.12mm × 4mm, Length: 1 Meter)
Nickel Strip 0.15mm × 6mm 1P Pure Nickel Welding Strip for 18650 Lithium Battery Pack – 1 Meter
[Nickel Strip] The Nickel Strip 0.15mm × 6mm 1P Pure Nickel Welding Strip is specially manufactured for building and repairing 18650 lithium battery packs and other rechargeable battery assemblies. Made from high-purity nickel, this strip offers low electrical resistance, excellent conductivity, and strong spot-welding performance. Its flat 1P plane design ensures uniform current flow and reliable connections between battery cells. The strip is corrosion-resistant and durable, making it ideal for long-term use in power banks, e-bike battery packs, solar storage systems, UPS batteries, and DIY lithium battery projects. Supplied in a convenient 1 meter length, this strip is easy to cut and shape according to your battery pack design. 🔹 Key Features Made from pure nickel (not nickel-plated steel) Size: 0.15mm thickness × 6mm width Flat 1P plane strip for uniform current flow Excellent conductivity with low internal resistance Strong and reliable for spot welding Corrosion-resistant and long-lasting Easy to cut, bend, and shape Perfect for 18650, 21700, 26650 lithium battery packs 🔹 Technical Specifications Material: Pure Nickel Thickness: 0.15 mm Width: 6 mm Type: 1P Plane Flat Strip Length: 1 Meter Color: Silver Application: Spot welding for lithium battery packs Compatible Cells: 18650, 21700, 26650 and similar cylindrical cells Resistance: Very low (high conductivity) Corrosion Resistance: Excellent 🔹 Applications 18650 lithium battery pack assembly Power bank manufacturing and repair E-bike and electric vehicle battery packs Solar battery storage systems UPS and inverter battery packs DIY lithium battery projects Battery repair and maintenance 🔹 Package Contents 1 × Pure Nickel Welding Strip (0.15mm × 6mm, Length: 1 Meter)
3W High Power White LED with Aluminum Heatsink – High Brightness Emitter Module
[LEDs] Upgrade your lighting projects with this 3 Watt High Power LED with Aluminum Heatsink, designed for excellent brightness and long-term reliability. The LED comes pre-mounted on a solid aluminum heatsink that efficiently dissipates heat, ensuring stable performance and extended lifespan. Perfect for DIY electronics, torch lights, spotlights, emergency lights, automotive lighting, and educational projects, this LED module delivers powerful illumination with low power consumption. Easy to install and compatible with standard constant-current LED drivers, this module is a reliable choice for both hobbyists and professionals. 🔹 Key Features High brightness 3W single-chip power LED Pre-mounted aluminum heatsink for effective cooling Long lifespan and stable light output Low power consumption, energy efficient Compact and easy-to-install design Ideal for DIY projects, flashlights, lamps, and experiments 🔹 Specifications Power: 3 Watt LED Type: High Power Single Chip Color : White Forward Voltage: 3.2V – 3.6V (typical) Current: 700mA (recommended constant current) Luminous Flux: ~180 – 240 Lumens (approx.) Heatsink Material: Aluminum Mount Type: Star PCB with attached heatsink Operating Life: Up to 50,000 hours 🔹 Package Includes 1 × 3W High Power LED with Aluminum Heatsink *Image shown is a representation only.
1S 2A 18650 (NMC) Lithium Battery BMS Round Shape With Nickel Strip
[Lithium Battery Protection Board] JLGW BMS NMC 1S 2A ROUND Hardware Product Data Sheet The BMS NMC 1S 2A ROUND (JLGW) is a high-precision, compact Battery Management System specially designed for single-cell NMC (Li-ion 3.7V) battery protection. This module is uniquely built in a round PCB layout, allowing it to seamlessly integrate into compact cylindrical battery designs or battery packs with limited space. Technical Specifications Parameter Specification Configuration 1S (Single 3.7V Li-ion Cell) Battery Chemistry NMC / Li-ion Nominal Voltage 3.7V Continuous Current 2A Overcharge Protection 4.25V ± 0.05V Over-discharge Protection 2.75V ± 0.05V Short Circuit Protection Yes (Instant cut-off) Overcurrent Protection Yes (~3A threshold) Working Temperature Range -20°C to +60°C PCB Shape & Size Round mini-PCBA with dual nickel strips Mounting Style Spot-Weld Tabs Key Features Space-Saving Round Design: Engineered for cylindrical cells and compact builds. Intelligent Safety Circuitry: Built-in MOSFETs and ICs protect against all common faults. 2A Output: Suited for low-drain applications like wearables and IoT gadgets. Nickel Strips Included: Pre-attached nickel makes welding and integration seamless. Single Cell Protection: Manages charge-discharge cycles efficiently for 1S packs. Ideal Applications LED Flashlights Cylindrical Battery Packs DIY Battery Projects Bluetooth Audio Devices Small IoT Systems Mini Power Banks The PCM NMC 01S/2A ROUND is a Battery Protection Circuit Module (PCM) designed for 1 series Nickel Manganese Cobalt (NMC) battery packs, supporting a 2A continuous discharge current. This module is suitable for low-power applications such as small energy storage systems, backup power solutions, and portable devices. The round designation indicates that the PCM is designed for round-cell configurations, which are commonly used in battery packs for various consumer electronics. It offers essential protection features, including overcharge, over-discharge, overcurrent, short circuit, and temperature protection, ensuring the safe and reliable operation of the battery. The PCM helps maintain the health of the cells by balancing the voltage across them, optimizing performance and extending the battery's lifespan. Package Includes: 1 x 1S 2A 18650 (NMC) Lithium Battery BMS Round Shape With Nickel Strip
650nm 6mm 3V DC 5mW Mini Laser Dot Diode Module
[Laser Module] 650nm 6mm 3V DC 5mW Mini Laser Dot Diode Module which is made of copper plastic. It is suitable for 3V 5mW standard, with 6mm outside diameter, can be used to connect diode tubes for multiple uses. Features- Output Power: 5mW Working Voltage: 3V DC Working temperature: -10 ℃~＋40 ℃ Housing material: Copper Working life: more than 2000 hours Spot mode: Dot Facula (continuous output) Laser wavelength: 650nm red-colored. Operating current: <40mA Power lead length: 120mm Package Includes : 1 x 650nm 6mm 3V DC 5mW Mini Laser Dot Diode Module
High power LED 20-100W lamp bead lens 44MM optical glass 90 degree led lens
[LED Lens] The 44mm High Power LED Lens Kit is designed for improving the light output and beam control of 20W to 100W integrated LED light sources. It includes a high-quality optical glass lens, reflective collimator, and metal fixing bracket for stable mounting. In addition, the lens provides a wide 90-degree light distribution, helping create uniform and efficient illumination. As a result, it is suitable for flood lighting, DIY LED lamps, spotlights, and industrial lighting systems. Because of its optical-grade glass construction, the lens delivers excellent light transmission and improved brightness. Furthermore, the included 50mm reflector helps focus and direct the LED beam more efficiently. The durable metal bracket ensures secure mounting and easy installation onto LED modules and heatsinks. Moreover, the compact design makes it suitable for custom lighting projects and high-power LED applications. This LED lens kit is widely used in flood lights, high-power LED lamps, DIY lighting systems, stage lighting, projection lighting, and industrial illumination projects. 🔹 Key Features Suitable for 20W to 100W high power LEDs High-quality optical glass lens Includes reflective collimator and fixing bracket Wide 90° beam angle design Efficient light focusing and distribution Durable metal reflector housing Easy installation and mounting Ideal for DIY and industrial lighting projects 🔹 Technical Specifications Product Type: High Power LED Lens Kit Lens Diameter: 44mm Reflector Diameter: 50mm Beam Angle: 60°–80° Lens Type: Optical Glass Lens Reflector Material: Metal Bracket Material: Metal Applicable LED Power: 20W–100W Light Angle: 90 Degrees Application Type: Integrated High Power LED Source 🔹 Applications This LED lens kit is suitable for many lighting applications, including: High power LED flood lights DIY LED lamps Spot lighting systems Stage lighting Industrial lighting Projection lighting projects Outdoor LED lighting systems 🔹 Package Includes 1 × 44mm Optical Glass Lens 1 × 50mm Reflector 1 × Metal Fixing Bracket
Nickel Strip 0.15mm X 5mm 1P Plane Coated Nickel Welding Strip For 18650 Lithium Battery Pack 1 Meter
[Nickel Strip] Nickel Plated Strip is best suitable for spot welding in the 18650 Lithium-Ion battery pack. Nickle Strip is generally useful in the welding of battery points together to connect the batteries in combinations. These Nickel Plated strips are popular because of their good performance while soldering as it gets soldered very quickly; easily with normal soldering metal with High tensile tension and Low resistivity. They are mainly useful in the manufacture of nickel-hydrogen batteries, lithium batteries; high magnification power tools batteries, laptop batteries, battery combination with HM. Features: High resistance to corrosion High Tensile Tension. Low Resistivity. Useful for battery points welding. Package Includes: 1 x 1 Meter- Nickle Plated Strip 5mm x 0.12mm
NY-D01 100A Digital Display Spot Welding Controller Board
[Spot Welding Parts] The principle of silicon-controlled phase shifting triggering is adopted to adjust the time and the current to achieve welding. With a digital display, you can directly see the time and current. Optocoupler isolates the strong and weak electricity, making the operation safer. Using a high-precision single potentiometer to ensure reliable and convenient input. The design of a reliable zero-crossing detection circuit ensures the SCR phase shift accuracy. Made of high-quality PCB, the control board is long-lasting. The module is 8cm long, 6cm wide, and 2cm high. It is developed for DIY or simple resistance welding. Features: 1 The use of STM8 industrial control center microcontroller. 2 Strong and weak electricity through optocoupler insulation, safe operation. 3 The power line and foot switch line adopts the bolt the quick connect terminal, more convenient and reliable. 4 Input time, current using a high-precision simple potentiometer, to ensure reliable, convenient input 5 On-board power supply, state, foot, trigger indicator, work status clearly visible. 6 The design of reliable zero-crossing detection circuit to ensure that the SCR phase shift accuracy. 7 The controller is compatible with 100A scr. 8 Digital control interface, you can display the current time and current settings. 9 Input time of 1-50, cycle unit (1 cycles is 20 ms), current input (30-99%), Material Plastic+Metal Current Input 30-99% Microcontroller. STM8 Time input 1-50 Shipping Weight 0.12 kg Shipping Dimensions 8 × 6 × 2 cm Package Includes: 1 x NY-D01 100A Digital Display Spot Welding Controller Board
Nickel Strip 0.15mm thick 2P Plane Coated Nickel Welding Strip For 32650 Lithium Battery Pack (Size – 50mm)
[Nickel Strip] H-Type Battery Connection Welding Strip for 32650 lithium battery Nickel strips are used in the welding of battery points together to connect the batteries in combinations. These Nickel strips are popular because of their good performance while soldering as it gets soldered very quickly and easily with normal soldering metal with High tensile tension and Low resistivity. They are mainly used in the manufacture of nickel-hydrogen batteries, lithium batteries, high magnification power tools batteries, laptop batteries, battery combinations with HM. The 50mm x 0.12 – 0.15mm Nickel Plated Strip is a high-quality conductive material designed for connecting batteries in parallel configurations. With its optimal width and thickness, it ensures efficient current flow and low resistance for stable performance. The strip is corrosion-resistant, offering durability and reliability in various applications. Perfect for DIY battery packs, it supports secure spot welding with excellent conductivity. Suitable for 32650/32700, and similar battery types, it accommodates two parallel connections seamlessly. Ideal for professionals and hobbyists, this nickel strip provides robust and long-lasting battery interconnections. Features: High Conductivity 0.12-0.15mm thickness 50mm width High-purity nickel Compatible with spot welding High Current Handling Lightweight Design Package Includes: 1 x 22mm x 0.12-0.15mm Nickel Plated Strip For 2 Parallel Battery Connections – 1 Meter
Single Hole Electrical Insulating Adhesive Mat for 18650 Battery Cell Terminal Insulation-25Pcs
Protect your 18650 lithium battery cells with these Single-Hole Electrical Insulating Adhesive Mats, designed specifically for positive terminal insulation. These high-temperature resistant insulation pads prevent short circuits, accidental contact, and terminal damage during battery assembly. Made from durable PVC/Fish Paper insulation material, each pad provides strong adhesive backing for quick placement and long-lasting protection. Essential for battery pack builders, DIY enthusiasts, and anyone working with 18650 lithium-ion cells. Perfect for battery pack assembly for power banks, e-bike packs, solar storage, DIY battery packs, robotics, and portable electronics. ⭐ Key Features Designed for 18650 Cells: Perfect fit for the positive terminal of lithium-ion 18650 cells. High-Quality Insulation: Prevents short circuits, metal contact, welding splashes, and accidental bridging. Strong Adhesive Backing: Easy to apply—sticks firmly to the battery top. Heat-Resistant Material: Made from durable PVC/Fish Paper capable of withstanding high temperatures. Essential for Battery Packs: Ideal for spot-welding, soldering, and pack assembly. Pack of 24: Enough for small and medium battery building projects. 🔧 Applications 18650 battery packs DIY lithium-ion projects E-bike, e-scooter battery packs Power banks & energy storage Solar battery packs Robotics & electronics Battery repair and assembly This Single Hole Electrical Insulating Adhesive Mat for Battery Cell terminal Insulation Ring is a cardboard paper for 18650 battery insulator. Better protection to avoid short circuit on batteries. Easy peel and stick application. Package Includes: 1x 25 pcs Single Hole Electrical Insulating Adhesive Mat for Battery Cell terminal Insulation
Nickel Strip 0.15mm X 10mm 1P Plane Coated Nickel Welding Strip For 32650/32700 Lithium Battery Pack
[Nickel Strip] Description Battery Connection Welding Strip for 32650/32700 Lithium Battery The 10mm x 0.12-0.15mm Nickel Plated Strip is a durable and high-quality material designed for efficient battery connections. Its pure nickel composition ensures excellent conductivity and corrosion resistance, making it ideal for spot welding applications. The strip's thin profile offers flexibility while maintaining strength, suitable for creating secure connections in battery packs. Measuring 10mm in width and 0.12mm in thickness, it is perfect for DIY projects and professional battery assembly. This strip supports high-current flow without overheating, ensuring reliability in power applications. Compatible with various battery types, it provides a clean and efficient solution for long-lasting connections. Features: High Conductivity Corrosion Resistance Durable and Flexible Spot Welding Compatibility High Current Carrying Capacity 10mm width 0.12 -0.15 mm Thickness Package Includes: 1 x 10mm x 0.12-0.15mm Nickel Plated Strip For Battery Connections – 1 Meter
NY-D01 40A Digital Display Spot Welding Controller Board
[Spot Welding Parts] This is a NY-D01 40A Digital Display Spot Welding Controller Board. The principle of silicon controlled phase shifting triggering is adopted to adjust the time and the current to achieve welding. With a digital display, you can directly see the time and current. Optocoupler isolates the strong and weak electricity, making the operation safer. Using a high-precision single potentiometer to ensure reliable and convenient input. The design of a reliable zero-crossing detection circuit ensures the SCR phase shift accuracy. Made of high-quality PCB, the control board is long-lasting. The module is 8cm long, 6cm wide and 2cm high. It is developed for DIY or simple resistance welding. Connection Diagram: Features: 1 The use of STM8 industrial control centre microcontroller. 2 Strong and weak electricity through optocoupler insulation, safe operation. 3 The power line and footswitch line adopts the bolt the quick connect terminal, more convenient and reliable. 4 Input time, current using a high-precision simple potentiometer, to ensure reliable, convenient input 5 On-board power supply, state, foot, trigger indicator, work status clearly visible. 6 The design of a reliable zero-crossing detection circuit to ensure that the SCR phase shift accuracy. 7 The controller is compatible with 40A SCR. 8 Digital control interface, you can display the current time and current settings. 9 Input time of 1-50, cycle unit (1 cycles is 20 ms), current input (30-99%), Package Includes: 1 x NY-D01 40A Digital Display Spot Welding Controller Board
ESP8266 WiFi 5V 1 Channel Relay Module Good Quality
[Relay Module] General Info : Onboard ESP8266 WIFI module, AP mode can be connected at the same time 5 client The module has two ways to work: (i) mobile phone directly mounted on the WIFI module; (ii) mobile phone and WIFI module also carried on the router. How to use : Onboard ESP8266 WIFI module has three operating modes: STA (client), AP (hot), STA + AP (client + hot), according to the work of the module to select the corresponding WIFI module mode of operation The The module needs to use the serial debugging software on the computer and USB to TTL module to send AT commands to configure the WIFI module, USB to TTL module RX, TX, GND pin, then the module on the TX, RX, GND pin, IN +, IN – 5V power supply. Usage Instructions 1) Hardware Connection: Insert the pre-programmed ESP-01/01S module into the onboard 2×4 pin female header (as shown in the diagram below). 2) Power Supply : Connect a DC 5V-12V power source to the module, with the positive terminal to VCC and the negative terminal to GND. 3) Mobile WiFi Connection : Open your phone's WLAN settings, search for and connect to the ESP8266-XXXX hotspot (default password: 12345678). 4) Launch Control APP : Run the pre-installed ESP8266 Controller application on your Android phone. 5) Configure IP Address : Enter the default IP address: 192.168.1.1 in the APP to remotely control the relay switch via your phone. Transmission distance: Open environment, the mobile phone mounted on the WIFI module when the maximum transmission distance of 400m. When the WiFI module and mobile phone at the same time carried on the router when the transmission distance according to the router’s signal weakly; Board function description : IN +, IN-: 5V power input; TX, RX, GND: Serial debug pin; Onboard the ESP8266 WIFI module has three work modes: STA (client), AP (hot), the STA + Ap( hot +client), according to the workings of a module to the corresponding choice of WIFI module working mode. Module need before use serial debugging software and USB to TTL module send serial command was carried out on the WIFI module configuration (don’t power outages after configuration is complete, as some of the parameters of WIFI module cannot be saved when the power is cut off), mobile phone and WIFI module after establishing a network connection can use the phone APP control relay. Control Commands : When cell phone equipped with WiFi module sends commands in the following order: (The default baud rate 115200) AT+CWMODE=2, namely AP mode is selected. AT+RST, reset. AT+CIPMUX=1, open multiple connections. AT+CIPSERVER=1,8080, configure the TCP server, set the port. AT+CIOBAUD=9600 set the baud rate to 9600. (working in relays to control the baud rate 9600). AT+CIFSR to view the AP mode IP address, such as the APIP, “192.168.4.1”. Cell phone WIFI signal connection name starts with AI-THINKER or ESP8266. In the “TCP connection” address and port into the APP, such as 192.168.4.1 and 8080. Click on the grey box relays can be controlled. Features: Onboard Module: ESP8266 wifi module; in AP mode it can connect with 5 Clients at the same time Operating Way: cellphone carried on wifi module; cellphone and wifi module carried on the same router, and use the APP to control relay Diode effusion protection. Short response time
Out of stock1M Nickel Plated Strip 8mm x 0.12mm Nickel-Plated for Battery Connection Spot Welding
[Nickel Strip] 🔋 Nickel Plated Strip 8mm × 0.12mm for 18650 Battery Pack Spot Welding (1 Meter) High Conductivity • Corrosion Resistant • Ideal for Lithium Battery Pack Assembly The Nickel Plated Strip 8mm × 0.12mm is a high-quality battery connection strip designed for assembling and repairing 18650, 21700, 26650, and 32650 lithium-ion battery packs. Manufactured from premium nickel-plated steel, it offers excellent electrical conductivity, high mechanical strength, and superior corrosion resistance, making it suitable for spot welding and soldering applications. With a width of 8mm and a thickness of 0.12mm, this strip provides reliable current transfer while maintaining flexibility for easy shaping and installation. It is commonly used in DIY battery packs, electric bicycles, power tools, solar energy storage systems, UPS batteries, portable power stations, and other rechargeable battery applications. The strip can be easily spot welded to battery terminals and is also compatible with conventional soldering methods when required. Its low electrical resistance helps minimize power loss and ensures efficient energy transfer throughout the battery pack. ⭐ Features Premium nickel-plated steel strip Ideal for spot welding lithium battery packs Suitable for soldering applications Excellent electrical conductivity Low electrical resistance High tensile strength Corrosion and oxidation resistant Flexible and easy to cut Smooth surface finish Long service life 📋 Technical Specifications Product Type: Nickel Plated Strip Material: Nickel Plated Steel Width: 8mm Thickness: 0.12mm Length: 1 Meter Surface Finish: Nickel Plated Electrical Resistance: Low Corrosion Resistance: High Installation Method: Spot Welding / Soldering Color: Silver 🔧 Applications Suitable for: 18650 Battery Pack Assembly 21700 Battery Packs 26650 Battery Packs 32650 Battery Packs Lithium-Ion Batteries LiFePO₄ Battery Packs DIY Battery Projects Spot Welding Battery Pack Repair Power Banks Electric Bicycles Electric Scooters Solar Energy Storage Systems UPS Battery Packs Portable Power Stations 📦 Package Includes 1 × Nickel Plated Strip (8mm × 0.12mm × 1 Meter) ⚠️ Note This is a nickel-plated steel strip, not pure nickel. Product images are for reference only. The actual product may vary slightly depending on the manufacturing batch.