Concept SL-100 32-LED Solar-Powered Security Light with Motion Detector Solar LED outdoor security light functions up to 10 hours on a full charge Light coverage equivalent to a 20-watt CFL; covers up to 190 feet Built-in motion detector turns the light on automatically; auto-off after user-defined timer setting Easy to install (no electrical wiring); requires 4V 4.5AH rechargeable lead acid battery (included) Light measures 9-3/4 inches wide by 9 inches deep by 14-3/4 inches high; solar panel measures 13-1/2 inches wide by 1/2-inch deep by 7-1/4 inches high