Thunder (TM) 8 Inch Cool Tube with Reflector Dimension 25.33" (L) / Vent Size 8" / Socket E39 Encased in fully heavy duty powder-coated galvanized steel. Made of 95% reflective German aluminum for excellent reflectivity. Equipped with a reflective inner sheet for 360 degree vertical and horizontal lighting. Comes with built-insocket and 15' pre-wired lam cord. Accommodates most lamp types up to 1000w Fully packaged with a built-in socket, 15' pre-wired lamp cord, and hangars. 5 Year Manufacturer Warranty ! *Bulb and Fan NOT included