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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
3V 100mA LED Filament 45mm COB Edison Bulb Filament
[COB LED] The 3V 100mA LED Filament 45mm is a flexible COB LED light source designed for decorative lighting, Edison bulb restoration, DIY lamps, and creative illumination projects. Available in a variety of colors, it delivers bright and uniform light output while maintaining low power consumption. In addition, the filament provides 360-degree illumination, closely replicating the appearance of traditional Edison-style incandescent filaments. As a result, it is widely used in decorative bulbs, custom lighting fixtures, model lighting, art installations, and creative electronics projects. Because of its flexible substrate design, the filament can be slightly bent to fit custom enclosures and unique lighting arrangements. Furthermore, it produces minimal heat during operation, making it safe for compact and enclosed lighting applications. The advanced COB LED structure ensures consistent brightness, excellent efficiency, and long service life. Moreover, the solderable metal terminals allow quick integration into DIY electronics and lighting projects. 🔹 Key Features Available in multiple colors Bright and uniform light output COB LED filament design Low power consumption Excellent energy efficiency Minimal heat generation 360° illumination pattern Lightweight and compact structure Easy solderable metal terminals Long operational life 🔹 Technical Specifications Product Type: COB LED Filament Operating Voltage: 2.8V to 3.2V DC Rated Voltage: 3V DC Forward Current: 100mA (Maximum) Power Consumption: Approximately 0.3W Brightness: Approximately 80–100 Lumens per Watt Filament Type: COB (Chip-on-Board) LED Filament Base Material: Flexible Polymer Substrate Connection Type: Solderable Metal End-Caps led Length: 45mm Total Length: 55mm Filament Diameter: Approximately 2.0mm Terminal Size: Approximately 2mm × 2mm Weight: Less than 1g Available Colors: Warm White, Cool White, Red, Blue, Green (subject to availability) 🔹 Mechanical Specifications Filament construction Durable polymer substrate Highly resistant to mechanical shock Lightweight design Easy soldering connection terminals Suitable for custom lamp and lighting assemblies 🔹 Applications This LED filament is suitable for: Edison bulb repair and replacement Decorative LED lamps Custom lighting fixtures Battery-powered lighting projects Art installations Scale models and dioramas Display and showcase lighting Wearable electronics DIY electronics projects Creative lighting applications 🔹 Package Includes 1 × 3V 100mA LED Filament 38mm (Selected Color)
Out of stock4V DC LED Square shape High brightness LED Aluminum Yellow bead COB strip light bulb pack of 1pcs
[COB LED] 4V DC LED Square shape High brightness LED Aluminum Yellow bead COB strip light bulb pack of 1pcs This is a special type of high-power COB LED light. This LED produces high power lighting compare to LEDs that are present in the market. With no wire, these COB LED lights to provide less fuss and have limitless applications. These COBs have tiny metallic contacts that can be directly soldered to wires. Our high-power COB LEDs are energy efficient and provide a superior lighting experience. This LED works on low power up to 1W. This type of LED provides long life and solid-state reliability. PACKAGE INCLUDES This is the pack of a single piece of 4V DC LED Square shape High brightness LED Aluminum Yellow bead COB strip light bulb Features Lower operating and manufacturing cost Uniform consistent bright light Reliable and constant LED Environmentally friendly Flexible design
7 IN 1 MULTICOLOR DOB COLOR CHANGING 220V
[COB LED] The 7-in-1 Multicolor DOB Color Changing 220V LED Light is a premium AC-powered LED module designed for decorative lighting, room ambience, DIY lamp projects, and home lighting upgrades. This high-brightness Direct-On-Board (DOB) LED can produce 7 different vibrant colors with smooth transitions, offering stunning visual effects without the need for any external driver. Simply connect it directly to 220V AC, making it ideal for homes, shops, studios, showcases, festivals, and creative lighting installations. The color-changing mode cycles through multiple colors including Red, Green, Blue, Pink, Yellow, Cyan, and White, giving you a complete multicolor experience. With long life, low heat, and high efficiency, this DOB LED module is perfect for replacing old bulbs or creating your own custom lighting solutions. ⭐ Key Features 7-in-1 Multicolor DOB LED Module Produces 7 vibrant colors with automatic color-changing mode 220V AC Direct Input – No external driver required High brightness & wide beam for strong illumination Perfect for DIY lamp projects, decorative lights, and ambience lighting Low power consumption with high efficiency Stable performance with long operating life Compact and easy to install on metal heatsinks or lamp housings 🔧 Typical Specifications Input Voltage: 220V AC Type: DOB (Direct On Board) LED Colors: Red, Green, Blue, Yellow, Cyan, Pink, White Mode: Automatic color changing Power: (Specify wattage if you want — e.g., 3W/5W/7W/9W) Use With: Heat sink / aluminum base for long life 🎯 Applications Decorative room lighting RGB ambience lamps DIY lighting projects Showcase lighting Event & festival decorations Night lamps & wall lighting Creative custom lights Package Includes: 1X 7 IN 1 MULTICOLOR DOB COLOR CHANGING 220V
Out of stock9 Watt MCPCB LED Bulb Raw Material CoolDay WHITE Color Light Electronic Hobby Kit
[COB LED] High precision electronic component 9 Watt MCPCB LED Bulb Raw Material CoolDay WHITE Color Light Electronic Hobby Kit. Suitable for robotics, IoT, and embedded prototyping.
Out of stock220V AC Red,Blue,Pink DOB Switch ON/OFF Color Changing LED Bulb Light Electronic Hobby Kit
[COB LED] Name : 220V AC Red,Blue,Pink DOB Material : Aluminium Type : LED Bulbs Assembly : Self Assembly Color : Multicolour Bulb Used : Led No. Of Lights : 10 & Above 220V AC Red,Blue,Pink DOB Switch ON/OFF Color Changing LED Bulb Raw Material Direct On Board MCPCB Light Electronic Hobby Kit Package Includes: 1 x 220V AC Red,Blue,Pink DOB Switch ON/OFF Color Changing LED Bulb Light Electronic Hobby Kit
3 Volt DC Rectangle COB LED Light Led Bulb Raw Material White Light
[COB LED] Description No Extra Circuit or Led driver Required, directly connect it on 3 VOLT DC, Colour Temperature: 6500K, Do not connect this COB direct with the AC current. Introducing the COB LED: Illuminate Your World with Brilliant Efficiency. Discover the future of lighting technology with our revolutionary COB LED. The COB LED is the perfect lighting solution for various applications and is designed to provide exceptional brightness, energy efficiency, and versatility. Whether lighting up your home, office, or outdoor spaces, the COB LED delivers unparalleled performance that will transform your environment. Product Description : Main Material: Aluminum-alloy plate Power: 5 W Input Voltage: DC 3-4V Max Current:1700mA Light Color: Cold White COB size: 50mm diameter Package Includes: 1 x 3 Volt DC Rectangle COB LED Light Led Bulb Raw Material White Light
Out of stock12v 9W DIY COB LED – Cool White
[COB LED] 5 Watt High Power LED SMD Bead Chips Bulb Light Lamp DC 12 Volt (White) Chip-on-Board (COB) LEDs is actually an array of high-power LED that is created by placing many low-wattage (typically 0.5W or 1W) LED dies side-by-side on a circuit board. COB LEDs are brighter, consume less power, and output a higher quality beam of light compared to older LED SPECIFICATION Operating Voltage 12V DC Max. Operating Current 410mA Power 5W Glow Colour Cool White Size 29x20x2.8mm View Angle 140° to 160°
Out of stockLi-Ion 18650 Rechargeable Battery 2500 MAH 3.7V
[Lithium Battery Cell] Li-Ion 18650 Rechargeable Battery 2500 MAH Usage/Application-Led Bulb,Toys,MP3Speakers,Solar battery, Led Bulb, Toys, Bluetooth Speakers, Torch, Solar battery pack, Battery pack manufacturing Model Number/Name 18650 cylindrical cell Brand: Depends on stock Battery Capacity 2500 Size Cylindrical Battery Type Lithium-Ion Capacity 2500 Lifecycle – 900 – 1000 Times Recharging Capacity Package Include 1 X Li-Ion 18650 Rechargeable Battery 2500 MAH 3.7V