Basic Broadway Lighting strips use fewer lamps to lower the overall wattage per strip. Sockets are on 7-1/2 inch centers. UL listed for ceiling mounting with 25w max. lamps. Notes: G-lamps recommended. General - Polished Chrome (-15) finish - Steel construction - Sockets are covered with matching socket cups - Socket spacing is 7-1/2" on centers - Medium based G lamps recommendedMounting - Wall mount - Ceiling mount only using 25 watt lamps - Full length back plate covers outlet box - Unit can be direct wired without outlet boxElectrical - Medium based phenolic sockets - Pre-wired with sockets in place.