be very careful with cheap xenon bulbs. I deal in these, supplying to cinemas and stage & studio and they can explode very easily. there have been cases in states where they have exploded and caused nasty accidents.
they are very delicate but when they go, they are like a mini bomb........and if ya dont believe me, get one and throw it at the wall, but make sure nobody is anywhere near it. quartz glass scatters a long way. Unless they are Osram, or another well known make, dont touch em.