If you discover a few your oudoor remote heads in the alley behind your building are out, don't waste money replacing the entire fixture -- just replace the bulbs! If you do business in a state that endures wet, humid summers like Michigan, Louisiana and Florida you'll know just how much damage water can do to electronics. Chances are your remote head just needs a 6V 6W sealed beam halogen emergency light bulb.
You or the prior owner likely chose waterproof remote heads outside connected to a normal indoor emergency light or exit sign battery unit. This is often a smarter choice than buying an expensive oudoor battery unit, especially when you don't need much light. Just ensure that your 6-volt 6-watt remote head is a sealed beam Par 36 lamp and not a composite bulb used in drier states and cities.
Any 6-watt emergency fixture or remote head that uses a 6 volt battery and accepts a sealed beam, slip in terminal bulb can accept our 6V 6W sealed beam halogen lamps, including the following fixtures: