The TRUGLO Sight-Line is a rechargeable handgun light with a lightweight compact design for comfortable concealed carry. It features a CREE LED light and fits Picatinny, Weaver, Glock, and many other pistol rails. The Sight-Line has a rechargeable battery and a single charge gives you 2.2 hours of continuous light. It has an Auto-off which turns off the light after 5 minutes without button push to prevent unintentional battery drain.