Are there 2 lamps inside of the unit and can you switch to use one or two lamps when diving or if one would burn out then you would have the other lamp as a backup??
SunnySports S You could switch between two different lamps underwater. and switch to a second lamp if the first burns out. When using the Rechargeable Kit switch between high-beam (30 watt) and low beam (14 watt). Use the high beam for spotting distant objects and the low beam for extending battery life.