Why not just get a dealextreme p2 torch?
answer-pathetic amount of light .very fiddly & build quality is shocking.
splash the cash . exposure joystick will do the job superbly.
wiggle have a ltd ed cam version marginally cheaper than a std model around £120.00. will kick the chinese dealextreme into touch for power had a much better quality lens & the battery lasts for ever & build quality is now second to none.
pathetic amount of light? 😆
If you want to spend lots of money on lights then go right ahead, but don't kid yourself that there is any significant advantage. Not sure how you work out that that exposure is brighter.
If you want something with better build quality but similar power you could get a fenix torch – still a third of the price of the exposure.