USB rechargeable 650 lumen headlight and 50 lumen COB tail light combo pack Both lights feature 6 modes , 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%, Green = fully charged Black 6F/6R Combo Adjustable Strap USB 650/50UPC/EAN/GTIN: 720018003809