Feature:1. Round LED chips, singlesided luminescence, uniform luminescence, no dazzling, no stroboscopic.2. Widely used in DIY lamps, table lamps, spotlights, downlights, ceiling lights, etc.3. Aluminum material metal substrate, high heat dissipation, low light decay, longterm use.4. COB light source, soft lighting, wide irradiation area, suitable for night lighting.5. Low power consumption, safe and stable, easy to install, and good lighting effect.Specification:Item Type: LED ChipMaterial: AluminumWeight: Approx. 11g / 0.4ozProduct Size: Approx. 20x20mm / 0.8x0.8inVoltage: 15-17VPower: 5WLamp Chip Type: COBLuminous Flux: 450LMService Life: 5000H.Package List:12 x LED ChipNote: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.