Streamlight TLR-8 X Sub Glock 43X/48 MOS and Glock 43X/48 RAIL Weapon Light with Red Laser -The TLR-8 X sub rail-mounted light accepts either a CR123A lithium battery or Streamlight's SL-B9 USB rechargeable protected lithium-ion battery pack. Interchangeable rear paddle switches accommodate your shooting style. Multi-fuel: Uses (1) CR123A lithium battery (included) or (1) Streamlight SL-B9 protected Li-Ion USB-C rechargeable battery pack; 500 lumens; 5,000 candela; 141m beam; runs 1.5 hours (CR123A), runs 1 hour (SL-B9); Laser mode runs 60 hours (CR123A); runs 36 hours (SL-B9); Ambidextrous rear paddle switches with HIGH and LOW options; Safe-off feature prevents accidental activation; saves batteries; Rail grip clamp securely attaches/detaches without putting your hands in front of the muzzle; Durable, anodized machined aluminum construction; User-enabled strobe function; Fits GLOCK 43X MOS/48 MOS and GLOCK 43X RAIL/48 RAIL; Length: 2.51 in; Weight w/ CR123A: 2.77 oz Weight w/ SL-B9: 2.87 oz; IPX4 water-resistant; Limited Manufacturer lifetime warranty;