Strion LED with AC. . C4 LED Technology, impervious to shock with a 50,000 hour lifetime Lithium ion 3.75V bettery with on-board safety control circuit 3 levels of lighting plus strobe: High: 8,800 candela (peak Beam Intensity), 160 lumens, up to 2 hrs. Medium 4,400 candela (Peak Beam Intesity), 80 lumens, up to 4 hours Low 2.300 candela (peak beam intensity), 40 lumens up to 7.5 hrs Strobe: Up to 5.5 continuous hrs. Adjustable focus beam Rechargeable up to 300 times on 100V,120V,230V,240V AC, or 12V DC chargers Clamp Style charger holder with digital control circuit that prevents over charge; LED indicates charge status. Fully recharged in 2.5 hrs. Momentary and constant on modes Grooved barrel provides superior rail mount retention Serrated tailcap Water resistant IPX4 Rail mount available fits long guns with 1913 (picatinny stlye) rails Length:5.9" Weight: 5.22oz Color: Black with AC