Here is my long and full review of the new Olight H2R Headlamp. This light is available in Cool and Neutral white options and uses a Olight Ultra High Drain 18650 battery. This flashlight is USB rechargeable and has a magnetic tail.
You can find this Olight and others available from many fine merchants.
Amazon – http://amzn.to/2r5dzot
Ebay – http://ebay.to/2rCOuAS
OlightStore – https://www.olightstore.com/led-flashlights/headlamps/olight-h2r-nova