... ,000 hours.2, circuit: Precision Design 3-speed dimming circuit, with anti-reverse, anti had put function:3-speed dimming: high - medium - lowA. light ... seconds, then after the next power shift, power more than 3 seconds with have memory function, power will default the next ... be condensing the long LED flashlight can not be compared 3.stainless steel shell, to give adequate protection flashlight, and ...