I've been running my geek system (Optronics/MR16, Luxeon III MR16, NightSun strobe, LED running lights F&R, 5Ah NiMH) for almost a year now. System has worked great, except that after a couple of rides in hard rain I notice water condensation inside the MR16 bulb unit, and sometimes even a little pooling. When this happens my runtime is reduced well below an hour, presumably because the h2o inside is reducing the electrical resistance of the bulb.

Anyone else had this problem? This has happened to me with both SoLux and Phillips bulbs, by the way. I've made no attempt to seal up the Optronics housings, but I'm not sure it would help anyway. It looks like the SoLux bulbs have a little bit of a gap in the sealant between the lens and the glass housing -- basically the sealant goes about 350 degrees around instead of 360, possibly to allow for expansion and contraction of the air inside? Has anyone tried sealing up the gap? Could this cause the bulb explode when it gets hot? For the moment I'll at least try installing a bulb with the "gap" pointing down.