The DEva Lighting System by Revolution Micro is a completely integrated, no compromise plug n' play plant lighting solution. This state of the art, low frequency, square wave electronic ballast is built right into the reflector. The reflector houses an Ushio 1000W double ended HPS lamp, which comes included. The DEva is designed using the highest quality components available, from the avionic grade capacitors, which are rated for 36 years of continuous operation, to the 97% reflective German aluminum in the reflector. The low frequency square wave produced by the DEva electronic ballast perfectly drives the Ushio DE-HPS lamp with virtually no electromagnetic interference (EMI) or acoustic resonance issues that plague so many other electronic ballasts. The DEvas are all CSA Listed and approved to UL 1598, and are manufactured at their cutting edge ISO certified manufacturing facility in Thailand, using only ISO traceable components.