How long does the battery last?

The maker claims six hours of run time from the built-in 18650 battery. Expect that figure on a lower mode; running all eleven LEDs will drain it faster.

What do the four modes do?

Middle light, side light, all light and strobe. All light is the brightest, side light is a narrower option, and strobe flashes for visibility.

No water resistance rating is stated. Treat it as splash-resistant at best and keep it out of rain and water.

Through the USB charging port using the included USB cable. No wall adapter is mentioned, so you supply your own.

The headlamp and a USB charging cable. The 18650 battery is built in, so no separate cells are needed.

Can I use it for running or cycling?

Yes, the maker lists running, jogging, cycling and fishing. The elastic band holds it on your head, and the wide LED spread lights the path ahead.

Where is the 11-LED USB Rechargeable Headlamp cheapest?

At Deal.ai, for $27.99, as of our latest check.

Free shipping on everything10% off your first orderNo account needed · Buy 2, save 10% · 3+, save 15%

11-LED USB Rechargeable Headlamp

Sold and shipped by Deal.ai

$27.99Free shipping

Buy 2, save 10% · 3+, save 15%

Extra 10% off your first order

Color: Black

Arrives about Nov 17–26, from a US warehouse

30-day full refund: if you're not happy with it for any reason, or it never arrives, tell us within 30 days and we refund you in full. Shipping and refunds