Streamlight Streamlight TLR-7 Sub, White LED, 500 Lumens, Fits Springfield Hellcat, Anodized Finish, Black, Includes Mounting Keys and 1x CR123A 69404 Ultra lightweight & compact" the TLR-7 sub Weapon-Mounted Tactical Light features the latest in LED technology for high lumen operation and provides 1.5 hours of continuous runtime from a single lithium battery. 500 lumen output delivers a powerful beam with extensive range" good peripheral coverage and selectable strobe mode. Featuring a specialized clamp and key system for mounting on the Springfield Hellcat.