Reflector Specifications Louvered on both sides Both sides & ends are angled and lined with 95% reflective metal insert Adjust-a-socket mechanism centers any size bulb and raises or lowers bulb position Dimensions: 21"L X 11½"W X 6¾"H (25¾"L with socket mounting bracket) Weight: 7lbs. Chrome wire hangers included for easy hanging Tempered Glass sold separately (required for UL listing in Metal Halide Systems) Can be converted to air cooled by attaching optional hose fittings Will accept all full size HID lamps (except BT-56)