Extreme Bright Do not look at the LED light directly. At least 6 hours for its first charge. Dont charge it all night.
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Warning Light On the back of the battery box is a red warning lights. If you use the headlamp at night, you can press the side switch to turn on the taillights and create a safer environment.
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USB Rechargeable This headlamp comes with two removable batteries, you can charge it with the included USB cable. It offers a variety of charging options to choose from, such as: computer, power bank, socket and so on.
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