about this item ?ABSOLUTELY LARGE COVERAGE With a total of 1152pcs LED chips, this BO-4000 6-bar LED grow light offers an extremely large irradiation area for plenty of plants. Coverage 5x5ft for veg, 4x4ft for bloom. Lightweight aluminum alloy material, detachable light bar, and daisy chain design. Perfect for indoor, greenhouse planting, personal and commercial growth. ?DIMMABLE AND DAISY-CHAIN FUNCTION Design for the full plant life cycle. The light intensity can be adjusted by the knob. With a daisy chain design, one light can control the intensity of the other 99 lights by dimmer at the same time. No additional controller is needed. The plant growing light includes 288pcs 3000K LEDs, 720pcs 6500K LEDs, 144pcs 660nm deep red LEDs. The sun-like light is best for indoor hydroponics and soil cultivation, such as potatoes, peppers, tomatoes, etc. ?HIGH-EFFICIENCY SMD LEDs The SMD LEDs used in this LED grow light are professionally customized and produced with the latest technology. Higher light intensity, lower speed of light decay, and higher PAR values than ordinary lamp beads. It provides 2.7?mol/J high efficacy, 1322?mol/?s PPFD output plant light. Maximize yield and optimal quality. ?LOW HEAT AND NOISE FREE Saving up to 50% energy and 30% cooler than other grow lamps. Consuming only 320W with 1152 LEDs! The latest aluminum radiator has a special surface treatment that doubles the heat dissipation area. High power, low heat, and low failure rate grow lamp. No fan, no noise. ?BEST SERVICE We offer 3 years warranty for this LED grow light. Our company is a professional manufacturer for over 3 years. Independent design and strict testing. Do not hesitate to contact us, if you have any problems. We will provide you a 100% satisfactory reply. Specifications: Power Actual consumption:320W5% -Shell Material:Aluminum UV and Fire Protection Package Dimensions:55.4 x 55.3 x 7.4 centimeters, Weight :6.85 lb Power source type SAMSUNG281b Manufacturer PHLIZON Efficacy: 2.7 µmol/J Core PAR Value: 1322umol/s Average Yield:2.5g/watt leds:1152 pcs -Warerproof Rate : IP65 -Power input:110-240V/AC,277V/AC,347-480V/AC,50/60Hz -Coverage Area :5X5FT VEG, 4X4FT BLOOM - Distance from the plants: ? 0,6 m (24") -Warranty :3 years -Light Distribution :120 -Thermal Management ;Passive -Dimming: 0-10V/PMW package included 1 x Led grow light 1 x Power cord 2 x Adjustable rope 2 x Hanging hook kit 1 x User manual