The Ledlenser HF4R Work Headlamp has a lightweight and slim design. The HF4R is equipped with a high color rendering index for close-range work and a flexible head. Additional features include a temperature control system that keeps the light from overheating, a fusion beam which provides near-range and far-range illumination, red light, a transportation lock, and memory function. The light has four modes: boost (500 lm up to 325'), high power (300 lm up to 325', 2.5-hour run-time), mid power (80 lm up to 200', 8-hour run-time), and low power (20 lm up to 50', 35-hour run-time).