VWXL Roughlyte fixtures are for use on walls and columns. VWXL Roughlyte fixtures guard against moisture and debris in exterior applications, for globe down mounting only . Not recommended for hazardous locations. Features: Includes heat and shock-resistant glass globe and cast aluminum bayonet guard with allen head security screws 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.