Hand Waver USB Rechargeable Headlamp
These USB Rechargeable headlamps are extremely well made with a zero failure rate. Best of all, they are Light and Bright!
They have 3 settings: high (138 lumens/5 hrs), medium (10 hrs), and low (15 hrs). Press and hold for 2s to activate flashing white.
It also features a separate button to activate the hand-waving/motion detection on/off function. The motion detection is very accurate (your hand must be within 5 cm)so it won't accidentally turn off on you.
I've tested the headlamp to run 33 hours on low; it slowly dims so it doesn't suddenly leave you in the dark.
It weighs 59g and is completely waterproof. The headband is strong, durable, fully adjustable and very comfortable.
The built-in 1200mAhlithium battery will last for 500 cycles and is easily recharged with the included micro-USB cable.
You can also customize it by adding a name (up to 11 letters) for an extra $5. (a photo shows the LIVFD version).