Nightstick TCM-10 Compact Tactical 650 Lumen Weapon Light for Handguns, Black. The TCM-10 Compact Weapon-Mounted Light produces 650 lumens from a single CR123 battery. An engineered TIR lens projects a tight bright spot for threat identification and confirmation that reaches 136 meters. The lens also produces a crisply defined outer halo for additional situational feedback. The TCM-10 features completely ambidextrous and intuitive rear-facing toggle switches on each side of the light to operate the momentary-on and constant-on lighting modes. A user-programmable strobe mode and battery-safe mode are available when needed. Constructed from aircraft-grade 6061-T6 aluminum with a polymer rear housing, the light includes five handgun-specific modular rail inserts (pre-configured with C1 insert for Glock pistols), two spare Allen screws, an Allen wrench, and one CR123 Lithium battery. Ambidextrous rear-facing toggle switches. Momentary or constant-on flashlight. User-programmable strobe & battery-safe modes. Aircraft-grade 6061-T6 aluminum housing. Type III hard anodized finish. Sharp, focused beam rated at 136 meters. Impact & chemical resistant. Serialized for personal identification. 1 CR123 battery (included). High Beam Distance (m): 136. High Candela: 4,612. High Runtime (h): 2. Switch Function: Momentary or constant-on. Case Material: 6061-T6 Aluminum. Quantity of Batteries: 1. Package Contents: Light, five modular rail inserts, 2 spare Allen screws, 1.5mm Allen wrench, (1) CR123 battery. US Patent(s) : 9713217.