The SureFire XC3-B WeaponLight is a compact, dual-fuel pistol light that includes one proprietary SFRCR123 rechargeable lithium-ion battery, meaning one battery is required for operation. Designed for railed compact and subcompact handguns, this lightweight illumination system has a total length of 2.6 inches and an overall weight of 2.65 ounces with the battery installed.