Streamlight TLR-7 Sub Weaponlight, 500 Lumens, Black, For 1913 Short Models 69402 Designed to enhance visibility and targeting capability in home defense and tactical situations" the ultra lightweight and compact TLR-7 sub Weapon-Mounted Tactical Light features powerful 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.