... hours. 2: Voltage: DC 5.5-12V, Max: 15V, double Li-battery protect;Current: LED whole course constant 5A, voltage step-down ... %-Strobe, total 6 grades;Circuit function: low-voltage protection and high efficiency DC-DC, circuit will cut down power automatic when ... , forestry, outdoor, explore, trip and so on. SST-50 1200Lm High Power Rechargeable Portable LED Flashlight