VWXL Roughlyte fixtures are for use on walls and columns. Not recommended for hazardous locations. Features: Complete with 4 inch die-cast aluminum box, four side and top hole tapped 1/2 inch NPT (four plugs included); Sockets are pre-wired with extra long 1/2 inch stripped leads; To use VWXL series with 3/4 conduit, use VW series with VXL13 universal box.