USB rechargeable 800 lumen headlight 6 modes per light, High steady, Medium steady, Low steady, Daylight pulse, Nitelight pulse and Economic Flash Memory Function-Light turns on at the last mode it was turned off Power saving function- 10% power or less, lights will automatically switch to lowest lumen output Built in battery indicator- Red illumination = lower than 25%, Yellow = 50% - 25%, Green = fully charged Side illumination ports allow cyclist to be seen when riding across traffic lanes Black 6 Front Adjustable Strap USB 800UPC/EAN/GTIN: 720018004530