This pendent uses a perpendicular optimal reflector to focus the light into the tank with up to a 400W metal halide bulb. The pendent should be mounted with the bulb perpendicular to the front of the tank. The power cord comes out the side with eye bolts on the back to hang the fixture. It can also be attached to an existing hood. The pendent is made from powder coated aluminum and has a glass lens. This fixture dramatically increases the light into the tank versus the bell shaped pendents. Dimensions: 10.75"W, 5.5"H, 13.25"L