20pcs Led Cob Chip For Usb Mini Keychain Camping Light 3-4v 5-15w 500-1500lm. Introducing the Versatile Keychains LED COB Light, a Compact and Efficient Lighting Solution Designed to Deliver High Performance. This Square-shaped LED Features a Robust Aluminum Substrate with a Thickness of 1mm, Ensuring Durability and Effective Thermal Management. With a Power Range of 5-15W and a Voltage Requirement of DC3-4V, It Fits Seamlessly into Various Applications. The 3333 COB Model Boasts an Impressive Luminous Flux Between 500-1500LM, Enhanced by 30 High-quality LED Beads. Its Cool White Color Temperature of 7000-8000K Provides Crisp, Clear Lighting with a Color-rendering Index Greater Than 70, Ensuring Accurate Color Representation. A Beam Angle of 120 Degrees Offers a Broad and Even Light Distribution, Perfect for Wide-area Illumination. Crafted with Gold Wire, Known for Excellent Conductivity, the LED Guarantees a Reliable Performance Span of 10,000 Hours. The Luminous Surface Measures 24x24mm, Creating a Focused Yet Ample Lighting Area. Operating Efficiently Within Temperatures from -20°C to 60°C, This LED is Ideal for Diverse Environments. --- Features: - Shape: Square - Power: 5-15W - Voltage: DC3-4V - Current: 500-1500mA - Luminous Flux: 500-1500LM - Chip Size: 5*18mil - LED Beads: 30 Pcs - Color Rendering Index: >70 - Beam Angle: 120 Degrees - Life Span: 10,000 Hours - Color Temperature: Cool White 7000-8000K - Size: 33x33mm (1.30x1.30 Inch) - Luminous Surface Size: 24x24mm (0.94x0.94 Inch) - Aluminum Substrate Thickness: 1mm - Thermal Conductivity: 2W/M·K - Operating Temperature: -20°C to 60°C - Wiring Material: Gold Wire Elevate Your Lighting Experience with the Reliable and Efficient Keychains LED COB..