3W LED COB Strip 3V–3.7V DC | DIY Warm White, Blue & Red Light
3W LED COB Strip 3V–3.7V DC | DIY Warm White, Blue & Red Light
3W LED COB Strip – Versatile DIY Light Source
Upgrade your DIY lighting projects with this compact, high-output 3W LED COB Strip. Operating on 3V–3.7V DC, this chip-on-board strip delivers bright, even illumination in a slim 60×8 mm form factor — perfect for customizing flashlights, bicycle lamps, downlights, spotlights, stage lights, desk lamps, and more.
Available in four versatile color options — Warm White, Cool White, Blue, and Red — this strip lets you tailor the light output to your exact application. The COB (Chip-on-Board) design packs multiple LED chips into a single module, producing a smooth, uniform beam with minimal hotspots.
Key Features
- Operating Voltage: 3V – 3.7V DC
- Power: 3W
- Dimensions: 60 × 8 mm
- Technology: COB (Chip-on-Board) LED
- Available Colors: Warm White, Cool White, Blue, Red
- Construction: Plastic, metal, and LED components
- Applications: Flashlights, bicycle lamps, spotlights, downlights, stage lighting, DIY lamp builds, and more
- Note: The LED chip generates heat during operation — a heat sink or radiator is recommended for best performance and longevity
Why Choose COB LED Technology?
COB strips integrate dozens of LED chips into a single substrate, producing a denser, brighter, and more consistent light output compared to traditional single-chip LEDs. Whether you're a hobbyist upgrading a bike light or a maker building a custom lamp, this strip gives you professional-grade illumination in a DIY-friendly package.
Ideal For
- Bicycle and cycling lights
- Flashlight modifications and repairs
- DIY desk and work lamps
- Spotlight and downlight replacements
- Stage and accent lighting builds
- Electronics and maker projects
For further guidance on LED lighting standards and energy efficiency, visit the U.S. Department of Energy – LED Lighting Resource.
Frequently Asked Questions
Q: What applications is the 3W LED COB Strip best suited for?
A: This 3W COB LED strip is ideal for a wide range of DIY lighting applications, including bicycle lamps, flashlight modifications, spotlights, downlights, desk lamps, and stage lighting builds. Its compact 60×8 mm size makes it easy to integrate into custom enclosures and housings.
Q: Does the 3W LED COB Strip require a heat sink?
A: Yes. Like all COB LED modules, this strip generates heat during operation. To maintain peak performance and extend the lifespan of the chip, it is strongly recommended to mount the strip on a heat sink or metal radiator surface when using it continuously.
Q: What colors are available for this COB LED strip?
A: This LED COB strip is available in four color options: Warm White, Cool White, Blue, and Red. Choose the color that best suits your DIY project — warm white for a cozy, ambient tone, cool white for bright task lighting, or blue/red for accent or specialty applications.
Q: What voltage does this LED COB strip operate on?
A: The strip operates on 3V to 3.7V DC, making it compatible with standard lithium-ion cells (such as 18650 batteries) and other low-voltage DC power sources commonly used in DIY and portable lighting builds.