The Nitecore NU20 has a maximum output of 360 lumens from the Cree XP-G2 S3 LED and has a built-in, rechargeable battery that powers the light rated at 2.22Wh, which is equivelent to three AAA batteries with a lifespan of 500 charge / discharge cycles.

Ideal for runners, the NU20 is compact and lightweight, with a hollow-carved head support to offer comfort and grip. The headtorch is USB rechargeable for ease and has a rubber cover over the micro USB port to protect from dust and water ingression. In addition, the head torch has a 100º wide angle illumination to cover field of vision and a 52º tiltable bracket to fulfill lighting requirements as necessary. 

The NU20 features a unique design that allows the torch to be operational while charging. This allows runners to charge the light using a battery pack whilst on the go, making the Nitecore NU20 ideal for long runs, races and marathons.

The NU20 is available in black with a yellow headband.

Brightness Levels & Runtimes:
Turbo: 360 lumens - 30 minutes runtime
High: 220 lumens - 2 hours runtime
Mid: 40 lumens - 7 hours 45 minutes runtime
Low: 1 lumen - 100 hours runtime

Plus Location Beacon & SOS flashing modes.

Maximum beam distance 80 meters, waterproof to IPX-7 and resistant to impacts up to 1.5 meters.

Includes: built-in battery, micro USB cable

Nitecore NU20 user manual can be downloaded here.