These are packaged bulk for commercial applications. The Gavita housing keeps the electronics cool, significantly reducing the possibility of faults and extending its operating life. In independent tests, the Electronic fixture came out as the coolest. Comes with our HR96 reflector that is made of a very high grade Miro aluminum which provides optimal reflectance of light to your crop. The Gavita Electronic DE comes with a Gavita Pro Plus 2,100 µmol, 1000 watt DE lamp. This professional fixture requires installation by a certified electrician in an industrial environment. 1 year warranty on the lamp.