Feature: 1. Integrated lamp chips, single?sided luminescence, wide irradiation area, uniform and soft luminescence. 2. Aluminum metal substrate, high heat dissipation, low light attenuation, and prolongs service life. 3. Suitable for a variety of DIY lamps, outdoor lamps, table lamps, spotlights, downlights, etc. 4. COB lamp chips, no dazzling, no strobe, effective protection of eyesight, good lighting effect. 5. Stable and safe, light weight, small size, durable and long?lasting, it is an excellent lighting accessories. Specification: Item Type: LED Chip Material: Aluminum Weight: Approx. 20g / 0.7oz Product Size: Approx. 20x20mm / 0.8x0.8in Voltage: 36-41V Power: 12W Lamp Chip Type: COB Luminous Flux: 1080LM Service Life: 5000H. Package List: 12 x LED Chip Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.