An exceptionally lightweight (158g) rechargeable headlamp. It comes with a helmet mounting set that makes it easy to attach to a safety helmet and a focus ring for easy adjustment of light focus when wearing gloves. The iH8R runs on a high-performance Li-ion 18650 3.7V battery and has an incredible run time of 120 hours on low. It can easily be recharged via the included USB cable. Comes with: focusing aid ring, helmet connecting kit, neoprene pouch with belt loop, USB cable, 1 x Li-ion rechargeable battery. Smart light technology - offers 3 light functions (high, mid, low) Advanced focus system - allows easy changing between broad floodlight and focused long distance beam Energy status indicator & temperature control system Ledlenser lights are covered by a 5-year standard warranty, which can be extended to 7 years by registering the product.