Avenue F-100 COB modes include high steady, medium steady, low steady, daylite pulse, nitelite pulse and economic flash Avenue R-50 COB modes include high flash, medium steady, low steady, daylite pulse, nitelite pulse and economic flash Fully usb rechargeable — no batteries to buy or replace Run time up to 22 hours 30 mins (Avenue F-100 cob) 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 off Multiple mounting options-vertical or horizontal mounting options as well as clip for mounting to packs, bags, or belts Built in battery indicators- red illumination = lower than 25%, green = fully charged