Vision Ultra Rechargeable Headlamp with seven modes & a headband is comfortable & powerful to illuminate any job or task that requires the use of both hands. It is dimmable to control brightness & runtime. VisionGuard protects vision by gradually increasing light intensity. Seven modes include high, low, wide low, red, night vision in red & green & flashing red for emergencies. Red & Green LED mode allows you to preserve night vision. Powerful beam provides up to 400 lumens of light at a distance of up to 80 meters. Durable lens is water-resistant & drop-tested up to 1 meter to stand up to harsh conditions. Use the included USB charging cable to recharge the lithium ion battery inside the headlight. After fully charging in 4 hours, this headlight delivers up to 4 hours of light & up to 400 lumens (in high mode) – 15 times brighter than standard LED technology.