USB rechargeable 500 lumen headlight and 45 lumen tail light combo packHeadlight has 6 modes , High steady, Medium steady, Low steady, Daylight pulse, Nitelight pulse and Economic FlashTail light has 5 modes , High steady, Low steady, Daylight pulse, Nitelight pulse and Economic FlashMemory Function-Light turns on at the last mode it was turned offPower saving function- 10% power or less, lights will automatically switch to lowest lumen outputBuilt in battery indicator- Red illumination = lower than 25%, Green = fully chargedBlack6F/5RComboRubber StrapUSB500/45UPC/EAN/GTIN: 720018004523