Features:- Street f-650 modes include high steady, medium steady, low steady, daytime pulse, nighttime pulse and economic flash- Avenue r-50 cob modes include high flash, medium steady, low steady, da more→ytime pulse, nitetime pulse and economic flash- Fully usb rechargeable — no batteries to buy or replace- Run time up to 26 hours (street f-650) and 11 hours 15 mins (avenue r-50 cob)- Power saving function- 10% power or less, lights will automatically switch to lowest lumen output- Memory function-lights turn on at the last mode it was turned offBuilt in battery indicators:- Alley F-650 - Red illumination = lower than 25%, Yellow =: 50% - 25%, Green = fully charged- Avenue R-50- Red illumination = …