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: 99pcs Runs on 120 or 240 volt power Max Power: 300W Viewing angle: 120 degree Color: Full Spetrum Size: L15.7" * W8.4" * H2.4" Case Qty: 4 pcs Package Dimension: L22.7" * W18.5" * H10" Operating Temp.: -20 to 40 degree C