1. LOWER COSTS & HIGHER-QUALITY: Using the newest Samsung LED diodes technology to achieve a higher energy efficiency with 2.7 umol/J. 2. SUNLIKE FULL SPECTRUM INDO GROW LIGHT: 3000K warm white, 5000K bluish light,660nm red light and 730nm infrared light together to form a sun-like PBAR spectrum. 3. NO FAN & NO NOSIE DESIGN: No Fan, ZERO Noise and water resistance. Passively cooled with a large area of solid aluminum plate heat sink, no exposed wiring. 4. LOW ENERGY CONSUMPTION: Consumes only 300W of power, which is more less than the operating power of other 600W HID/Blurple/HPS lamps. Veg Coverage: 3.5 X3. 5 ft, Flower: 3 x 3 ft. 5. 100% SATISFACTION GUARANTEED: We offer a 30-day money-back guarantee and 3 years warranty. Professional guidance to help your plants grow better.