The power source: four 18650, 4400mAh, 8.4V batteries with two series ... body nets: 180g Battery pack nets: 200g 1.5 Switch Mode With translucent silicon design, blue and red LED ... 6.4V1.6 Power source The power source consists of four 18650, 4400mAh, 8.4V batteries with two series ... , it can work continuously 3 - 4 hours.'1.7 Four Files Switch Bright light (100%) Medium light (50%) Low light (20 ...