5 MODES -- 3 for Bright White Light (High/Mid/Low), Red and Red SOS for emergency. This light lamp have extra memory function. When you turned on a specific mode for longer than 4 sec, you don’t have to cycle through other lighting modes. USB RECHARGEABLE -- Fully charged only for 3 hours and offer 4 hours continuous power on high mode, 12 hours on low mode, 800mAh Li-polymer battery built-in. No need battery changes frequently. SUPER BRIGHTNESS -- With max 500 lumens of power, the headlamp can easily spot a distance of 650 FT for a maximum of 4 hours, which gives you a large area of light for any nighttime mission. The running headlamp weighs only 1.5oz, easily taken and never be a burden for your head. IP54 WATERPFOOF -- Quite safe to use in rains or snows. Humane design-60 degree tilting head reduces neck fatigue. Ideal choice to brighten up your environment whenever and wherever you want. IDEAL FOR OUTDOOR -- Soft adjustable elastic headband perfectly fits adults, keeps the headlamp stable on your head, even while Cycling/Adventure/Camping/Hiking/Running/Night Fishing/Hunting/Car Repairing, etc. LED RED Headlamp