LED Grow Lights by the Sunhope provide 100% of the Light Spectra needed for efficient Photosynthesis. Whether using Horticultural Lighting as a supplement to natural light or as the primary source of lighting for your plants, growing with LED is fun and easy. LED beads: 162pcs Runs on 120 or 240 volt power Max Power: 410W Viewing angle: 90 degree Operating Temp.: -20 to 40 degree C Color: Full Spetrum Size: L19.1" * W19.1" * H3.2" Case Qty: 1 pcs Package Dimension: L24" * W23.4" * H10.6" Operating Temp.: -20 to 40 degree C