Surface Mount Deck/Step Light shown in optional acid-washed rust cast brass. Size:3.5"W x 2.25"H with 1 light, 18 watt 12 volt S8 bulb. Available in other finishes and other lamping. Perfect for lighting deck railings, posts, steps, docks or piers. Easy to change light bulbs. High quality USA made surface mount lights can be customized to your specifications. There is no need that cannot be met, or solution that cannot be provided. These surface mount lights are creative, strong and durable, as well as energy efficient.