Model:SA(Police Type) Functions: Shock Resitant,Rainproof,full-charging and Over-discharging Protection, Both Indoor and Vehicle Chargeable(Line Charger) Battery Capacity:6V6.8AH(21 Pieces of Copper Sheets),Three Shifts of brightness Continuous Illumination Time:1.8~3.5 Hours(25W Halogen Bulb)