The Growers Choice + TSL ROI-E720 LED grow light is designed for commercial growing operations of high value crops, but can just as easily be used in smaller operations and grow tents. The ROI-E720 LED grow light is the latest offering from Growers Choice taking the place of the extremely popular ROI-E680. The 720 increases the wattage from 680 to 720 and includes newer improvements to LED technology. The ROI can also be used in the BOOST mode to increase the PPF of 1870 umol/s to 2050 umol/s (approximately 10%). Growers Choice ROI-E720 LED Info + Specifications Recommended hanging heights above canopy: Propagation: 48" Vegetative: 24" Flowering: 6" to 12" Coverage area: Propagation: 7' x 7' Vegetative: 6' x 6' Flowering: 5' x 5' Onboard dimming function (100%, 75%, 50%, 25%) Fanless design for heat dissipation GC-3k Full Spectrum with 660nm deep red (top bin Osram diodes) Operating temperature: -20°C to +45°C Certifications: IP65 Waterproof; Horti DLC; UL1598 and UL880 Recommended for: Home grows, commercial grows, grow rooms, grow tents