so far I'm pretty happy with the DIY build from Solar Force (Hong Kong) products... a LM2 body was $11 (2x cr123) and a 320 lumen LED module about the same.. also a 240 lumen LED module for about $10... has a click tail cap, momentary and on... no multi modes ... I EDC along with a Fenix E01, a Streamlight TacPro 1L that is a single cr123 and 3 modes.. but it was around $35...it took about 2 weeks to get the light from Hong Kong, but shipping was pretty reasonable...at the same time, I purchased several LED module upgrades for a couple of SureFires incandescents I had laying around...