Using your Klein 56048 headlamp is easy. You can wear it with the adjustable fabric strap around your head or attach it to a Klein® Hard Hat using the included bracket. To switch between the three lighting modes - floodlight, spotlight, and boost mode - just press the relevant button on the headlamp. When the LED lights on the battery gauge show low battery, it's time to recharge it. As for maintenance, keep the headlamp clean by wiping it with a soft, dry cloth. Avoid exposing it to extreme temperatures or moisture. If you're not using it for a long time, store it in a cool, dry place.