Grow LED NO.1 - FC6500 LED Grow Light Grow LED NO.2 - UR45 LED Grow Light ( Free ) Experience the ultimate grow light kit featuring the Mars Hydro FC6500 and Mars Hydro UR45. This kit is specifically designed for growers who want a fully functional lighting system with high quality full spectrum lighting and individually controlled UV and IR supplemental lighting to activate potential growth and promote harvest in the 5 x 5' growing area.