The Grow Pros Solutions 4' Under Canopy Grow Lights are designed to provide supplemental light to the lower regions of plants in indoor cultivation environments by strategically placing them beneath the top canopy of plants to ensuring leaves and flowers below the canopy receive optimal light exposure by eliminating shady areas. Under Canopy Grow Lights benefits include uniform light distribution, maximizes yield and denser flower. What's Included: Pack of 2 (2x) 4ft Under Canopy Lights (1x) 120V Power Cord (L-15P) with attached RJ12 Data Cable Pack of 8 (8x) 4ft Under Canopy Lights (1x) 240 Power Cord with attached RJ12 Data Cable (1x) 2-to-1 RJ12 Splitter (1x) 16 ft. RJ12 Cable