The LIGHT² RH4 is a 420lm rechargeable headlamp with red light. Equipped twist focusing system, you can freely adjust the focus from a focused beam to a flood light according to different lighting requirements. By using the CREE® XP-G2 LED, RH4 delivers up to 450 lumens with a 1000mAh high capacity lithium polymer battery for power, ensuring lighter in weight, long lasting, and safer. The battery can be charged separately. 3 pcs of AAA Alkaline batteries can supply power for the lamp when rechargeable battery is dead and there is no access for charging. RH4 is your ideal choice for nighttime walking, running, bicycling, hiking, camping, climbing, fishing and industrial repairs If you are interested in the RH4 you may also be interested in the LIGHT2 RH3, H2 and H1.