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Pricelist: Retail Price (B2C) Pricelist
Pricelist: Retail Price (B2C) Pricelist
3.7V-4V Capsule COB LED Light High-Brightness Cool White Aluminum Plate

3.7V-4V Capsule COB LED Light High-Brightness Cool White Aluminum Plate

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ComponentSpecification
Light TypeCOB (Chip-on-Board)
Input Voltage3.7V – 4V DC
Max Input Voltage4.0V DC
Color TemperatureCool White (6000K - 6500K)
Plate Dimensions74mm x 22mm x 2mm
LED Area Dimensions60mm x 17mm x 1mm
MaterialAluminum substrate with Silicone Rubber
Weight~2 grams
Price
₹ 29.66 ₹ 29.66
(Tax included)

Product Description The 3.7V-4V Capsule Shape COB LED is an innovative and ultra-slim lighting module designed for applications where space is at a premium. Utilizing Chip-on-Board (COB) technology, multiple LED chips are integrated directly onto an aluminum plate, resulting in a uniform, high-intensity light output with superior thermal efficiency. Its unique "capsule" shape and lightweight design make it ideal for portable devices, custom automotive lighting, and low-profile decor projects.

Key Features

  • Ultra-Slim Profile: At only 2mm thickness, it fits perfectly in tight crevices and slim enclosures.

  • Uniform Illumination: COB technology eliminates "hot spots," providing a smooth and consistent cool white glow.

  • Aluminum Thermal Core: The back of the plate acts as a primary heat sink, dissipating heat effectively during operation.

  • Low Voltage Optimized: Specifically designed to run off single-cell Lithium-ion (3.7V) batteries.

  • Innovative Capsule Shape: Provides a modern aesthetic and allows for creative integration into sleek product designs.

Technical Details

  • Voltage Sensitivity: Operates optimally at 3.7V. Do not exceed 4V, as this will cause immediate and permanent damage to the LED chips.

  • Thermal Management: Requires contact with a flat metallic surface for extended high-brightness use.

  • Polarity: Clearly marked positive (+) and negative (-) solder pads for easy wiring.

  • Light Output: High-lumen density for its small size (60mm active area).

Prototyping and Engineering Tips from Robogears

  • Lithium-Ion Compatibility: This COB is the perfect match for 3.7V 18650 or Li-Po batteries. Since a fully charged battery reaches 4.2V, we recommend using a small current-limiting resistor or a TP4056 charging module to ensure the voltage stays within the safe 3.7V–4V range.

  • The "Cool" Factor: Because the LED area is large (60mm x 17mm), it works beautifully for internal lighting in 3D-printed robot heads or as a "display light" for acrylic etched signs.

  • Mounting Advice: Use Thermal Double-Sided Tape to stick this directly to an aluminum chassis. This ensures the LED stays cool while providing a secure, low-profile bond.

  • DIY Work Lamp: Pair two of these in parallel with a simple toggle switch and a 18650 cell to create a high-intensity, ultra-portable rechargeable work light.

Package Includes

  • 1 x 3.7V-4V Capsule Shape COB LED Light (Cool White)

Disclaimer Images are for reference; actual dimensions or solder pad placement may vary slightly by production batch. VOLTAGE WARNING: Ensure your power source does not exceed 4.0V to prevent chip failure.