mine came with a P4 droppin modules, i then stuck in a Q5 modules and now it has an R2 modules all of which fitted perfectly with no problems. build quality is good. i have used mine for 3+ hours at times and has been dropped from about 15 feet onto a cement floor with only a minor scratch to the finish and a nice chip out of the cement. i have 3 of them atm and am more than happy with them.
take a look at this one i don't have one yet but maybe worth a look
http://www.dealextreme.com/details.dx/sku.976
extract form chat thread on that page
fiream29 Tuesday, April 29, 2008 4:44 AM </B>
I have this light and protected 18650s will fit but are snug and have a very short runtime with the incan lamp. Works much better with RCR123s. Since I replaced the module with a Cree drop-in I do use 2-18650 Trusfire protected cells and both the output and runtime are great. Out of the four Trustfires I have, two slip right in and two require finger pressure to insert