Cloud Defensive, REIN Gen 2, Weaponlight, 71,000 Candela, 1100 Lumens, Accepts 18650 and CR123A Batteries, CLD Rein Gen 2 Complete Kit, Black, Includes 18650 Battery FLYER Reduced bezel diameter by 15% (same size as the other guys now) Reduced length by 6% (shorter than the other guys now) Reduced weight by 14% (lighter than the other guys now) Proprietary military-grade (MIL-PRF-13830B) optical lens coating producing a now-optimized 5200k light temperature. Reduced mounting lug height (sits tighter to your rail) Runs on 18650 or CR123A Product Description REIN is the most powerful and most configurable weapon light ever made. And now, it's even better. With reduced size, reduced weight, more capability and more head options, nothing comes close. It's smaller, lighter and brighter. Everything you wanted it to be.