This fixture is a high performance LED grow light for horticulture cultivation. The compact design with a built-in driver balances the energy efficiency and human work environment. The innovative V-shape design on the LED panel improves light distribution, which lowers the height from canopy needed as it reduces light energy loss. Full spectrum design with UV provides better spectrum similar to the natural sunlight covering each critical phase of growth from vegetative to flowering. Extra Far Red spectrum channel allows a 10-15 mins exposure under Far Red, it can be applied to crops to help finish the flowering cycle faster (External Controller required). It provides great external control ability and allows up to 256 fixtures per channel with outstanding efficiency at 2.54 umol/J. SPECIFICATIONS PPF 18 29 μmol/s Efficacy 2.54 μmol/J input Power 720 Watts Power Factor ≥ 90% Weight 22.33 Ibs Dimensions 45.24″L 4.36″W 6.46″H Mounting Height >2.5' Above Canopy Lifetime L90 >54,000 hours Warranty 5 years standard warranty Input Voltage Autosensing 100-277 Volts. Amp Draw 6.23 @ 120 Volt 3.09 @ 240 Volt 2.71 @ 277 Volt IP Rating IP66 BTU 2456.74 btu/h