Our solar version RT-G800W CT1930e has the same optics and light intensity as the Gavita 1000w de HPS, the plant canopy is covered without reconfiguring wires and relocation fixtures; additionally, the adapter for the fixture allows you to use the old 3-pin Wieland power cable from the Gavita de HPS . Take one gavita HPS down and put the new CT 1930e up without costly rewiring costs.