Sun System is one of the many brands owned by Sunlight Supply, Inc. The Sun System brand features their H.I.D. (High Intensity Discharge) and Fluorescent light fixtures for horticultural applications. Their product line includes a varied offering of ballasts and reflectors to fit their customer's needs. They offer a complete line of standard and horticultural-specific H.P.S. (High Pressure Sodium) and M.H. (Metal Halide) lamps as well as grow light accessories. BetterGrow Hydro has the privilege many years ago to visit Sunlight Supply's massive lighting factory and I can honestly say that we were very impressed at the innovation and sheer size of their operation. It looked more like an automobile factory than a lighting factory!