Name: DBAL-A2 Metal version. Battery: CR123A/163401 (battery not included). Endurance: Low light 4H, Strong light 1H. Power: Red laser 3MW. Green laser/blue laser 5MW. Function: Low light/Strong light/Whiite light/Strobe/Green laser/IR laser/Mechanical effective zero. Installation: 20mm Picatini guide rail.