Feature:1. No driver, power line can be directly connected to power supply, no need to install transformer.2. Metal aluminum substrate, not easy to deform, compressive, good thermal conductivity, and excellent heat dissipation function.3. The waterproof glue on the surface makes the LED lamp well protected, thus prolonging the service life.4. 20W power consumption, sufficient brightness, 4500lm, often used in the field of plant growth lamps.5. Widely used in traffic lighting, landscape lighting, advertising lighting, indoor lighting, special lighting, aquarium lighting and so.Specification:Item Type: Light ChipMaterial: AluminumColor: As shown in the pictureProduct Size: Approx.75x40mm / 2.95x1.57in(L x W)Weight: Approx. 18g / 0.6ozPower: 20WLuminous Flux: 4500lmColor Rendering Index: 80Beam Angle: 120Service Life: 6000H.Package List:1 x Light ChipNote:1. Please allow 1‑2in 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.3. High voltage is dangerous, please complete the connection and light up under the guidance of professionals!