Double battery lasts long with use. USB output to charge from or power anything from, or charge it. Lighting power is 120 watts. The lighting is shown in the picture and video. You can make it wide-angle lighting or straight lighting. The lighting reaches over 100 meters approximately. The lighting is very strong. The quality of the headlamp is excellent. The lens headlamp is better than the yellow one. For fishing, desert trips, camping, engineering, and more. Available quantity: 3 headlamps. You can test it before you take it.