This classic brass bulkhead light can use up to a 60w electric bulb and mounts with two screws. The frosted glass lens is protected by a brass framework which is rugged enough for an engine room but rich looking enough for the main salon. It can also be overhead mounted. It's dimensions are: 5.38" wide x 7.63" long x 4.38" deep. The light source is 110v electric and a 60 watt max. Bulb is not included. It weighs 5 lbs. 12oz. The distinctive style, quality, timeless design and lasting beauty of this light will enhance the decor of any home or ship's cabin. If you want a modern light with distinctive antique flavor then look no further.