This beanie hat has an inbuilt headlight.
The hat itself is basic woollen beanie hat, but in the turnup, there is an LED light.
The headlight is activated by a button in the middle and pops out of the frame for USB charging.
The hat is very convenient no hands needed light for finding things or putting up a tent at night and somewhat less bulky than head lights, the downside is you can't adjust the angle so have dip your head further than a head light.
The only other downside I see is warm summer use but yet to experience that.
This light is not going to blind people or bring down planes, but it's bright enough to be very useful.
I got this or these hats (1 Grey and 1 Black one) as a gift from friends for Christmas