The Bulbs last for a while in my experience. I've got an A2 that I have had for a good year now (the longest of my Xenon Surefires) and that is still on its original bulb. I used it quite often when I did stage work. I actually let someone borrow it and they left it on for the whole show (3 hours) until the only thing still lit was the LEDs because of lack of battery power. The thing it kills is batteries, it goes through those 123s like water. <img src="/images/graemlins/grin.gif" alt="" />