Thunder (TM) 6 Inch Cool Tube with Reflector - 5 Year Manufacturer Warranty Dimension 25" (L) / Vent Size 6" / 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 !