The Nitecore NU35 headlamp has a maximum output of 460 lumens from the Cree XP-G3 S3 LED. The light gives the option of a dual power source with a built-in 590mAh li-ion battery or use 3 x AAA cells. Please note, when AAA batteries are inserted the headtorch will give priority to using them over the built-in cell. The dual power sources mean the NU35 can have a runtime of up to 10 hours on the high mode with 4 hours from the built-in battery and an additional 6 when using AAA cells. The li-ion battery is rechargeable via USB-C, simply plug the included charging cable into the port on the side of the light. The NU35 has a primary white light which provides a smooth flood beam, ideal for search and rescue, maintenance, emergency, construction and walking. The headlamp also features an auxiliary red and high CRI white light to increase the versatility of the light, making it suitable for wildlife observation, camping and night photography. Featuring such a range of brightness levels and outputs, the NU35 has a simple user interface made up of two switches on top of the headlamp with a physical protection to avoid accidental activation.