Ledlenser HF4R Work HeadlampThe Ledlenser HF4R Work is our slim and lightweight basic model for industry and trade. In addition to three brightness levels and a red front light, the HF4R Work is equipped with a high color rendering index for close range work. The steplessly tilting lamp head provides flexibility. Protective elements at the front prepare the lamp for demanding applications thanks to its efficient battery, you can use the HF4R Work for up to eight hours at mid