Specifications: Adopts high quality LED lamp beads, high lumen, stable performance. Surge voltage stable smart IC chip. No need driver, easy to DIY. Heat dissipation aluminum PCB, insure safe lighting and longer lifespan. Full band spectrum plant growth light, can be used for breeding vegetable and plant. Item Name: COB Smart Chip Wattage: 20W, 30W, 50W Voltage: 220V, 110V Color Temperature: Cold White 6000-6500K; Warm White 2800-3200K; Purple Light 380-780NM Color Rendering Index: Ra80 Beam Angle: 120 Degree How to Use: Connect 220-240V Lifespan: Over 10,000hrs Housing Material: Aluminum Features: Super Bright, No Need Driver, Smart IC, Easy to DIY Item Size: 60mm x 40mm/2.36" x 1.57" (Approx.) Shine Size: 26mm x 26mm/1.02" x 1.02" (Approx.) Notes: You will find more amazing products if you visit our store. Due to differences in lighting and screen settings, the color of the project may be slightly different from the picture. Due to different manual measurements,allow for slight size differences. Package Includes: 1 x COB Smart Chip