Hey Guys, need help upgrading my Surefire 6P Original. I went to rechargeable Li Ion batteries, need an LED bulb that won't blow. I already blew 2 Chinese/ebay bulbs, need something decent. Would like something pretty bright, appx 500 lumens/brighter. Light uses 2 Li Ion batteries, LFP 123A 3.2V each, purchased directly from Surefire, with charger. Batteries say K2 Energy on them, 1.92Wh. That's all the info I have, can you guys recommend an LED bulb for this 6P light/battery combo? Thanks