Highpoint Deck Lighting HP-578P-MER Aspen 12-Volt Surface Mount Rail Light Fixture, Merlot Surface mount outdoor deck fixture, easy installation. Simply mount the back plate and slide on the cover. There are no tedious set screws to get frustrated with on this deck light. Easy light slide on plate. Unique powder coat painted-on finish on galvanized steel Artistic lighting for your outdoor living space Designed to add safety and style to your deck day or night