UV 395nm: UV diodes stimulate anthocyanins, which improve the quality of fruits and flowers. IR 730nm: Makes plant produce Emerson and leaf-canopy inhibition of germination.For all plants in the different growth stages. Product Dimensions: 2 x 6.9 x 10.3 inches. Item Weight: 6.8 pounds. HIGH EFFICIENCY LED GROW LIGHTS: LED plant grow light has adopted the newest LM301B diodes and the newest SMD LED technology provides the highest PAR/LUMEN output, high energy efficiency with 2.8umol/J while speeding up photosynthesis, designed to replace a single-ended 400watt HPS/CMH grow lights! UPGRADED COMMERCIAL LED GROW LIGHT: Daisy chain compatible to make fewer cords, which can connect with other grow lights to extend the coverage. No more than 3pcs growing lamps can be connected and used together by power cords. The power supply works on 90VAC to 277VAC, suit for large rooms and commercial Setups. Perfect for 4'x4' vegetative coverage and 3.5'x3.5' flowering coverage. FULL SPECTRUM LED GROW LIGHT: According to the light compensation point and saturation point of the plant(MJ), the more suitable spectrum of the plant(MJ) was proportioned. Total 596 LEDs included 460nm, 620nm, 730nm(IR) and 396nm(UV) which can replace natural sunlight. UV diodes stimulate anthocyanins, which improve the quality of fruits and flowers. SAFE&DURABLE LED GROW LIGHT: Without the design of the reflector because the led reflector is not heat-resistant. If a short circuit occurs, the reflector is easy to melt and fire. We adopted cooling fans design of high speed &super quiet & upgraded aluminum cooling heat sinks so that the heat dissipation efficiency is improved and the light decay is slowed down. Save the cost of changing lights frequently. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Hydroponics\Grow Lighting & Accessories\Grow Light Kits". The seller is "zhongren-sky" and is located in this country: US. This item can be shipped to United States.