·Power Draw:300W±5% AC100-277V ·PPE:3.3umol/J ·Max Yield:2.9g/watt ·Cover:150x60cm Maximize Flowering and Yields in Indoor or Greenhouse. Mars Hydro SP3000R LED Grow Light delivers red-spectrum 650-665nm wavelengths to boost plant growth, flowering, and fruiting. It can be used with other LED or hid fixtures for mixed projects and as supplemental and top lighting for outdoor farms and greenhouses. SP 3000R LED has a slim and compact design to minimize shading and provides excellent performance even on the cloudiest days.