The HC35 is Nitecore's first headlamp to be powered by the newly developed rechargeable 21700 Li-Ion battery. The included rechargeable battery NL2740HP with a powerful 4000 mAh delivers performance of up to 45 minutes at the highest light level (2700/ 800/270/40/1 lumens) and can be easily charged via USB-C. The headband holder is equipped with a clip, so that the lamp can be easily and quickly mounted on the strap and removed again. With the tactical clip, which is also included, the lamp can also be easily attached to the trousers or to the equipment. The intelligent ATR temperature control reduces the luminous intensity until an uncritical temperature is reached, and then independently increases it again.
A constantly switched light electronics and reverse polarity protection ensure the longevity of the electronics. In addition to the rechargeable battery, a Nitecore battery magazine, which allows the lamp to be operated with a classic 18650 Li-Ion rechargeable battery or two CR123 batteries, are also included. Made of anodized aviation aluminum with stroboscope, beacon (emergency flash), SOS, battery level indicator, clip, lanyard, headband and sealing ring.