Features and Benefits: Pure Beam Focusing; 530 lumens; 511 ft. beam distance; White and red beams; Lifetime warranty; The FL75R Headlamp is the first rechargeable headlamp in the Coast FL series. The light features a Flex Charge Dual Power system. The Flex Charge feature allows for the rechargeable battery pack to be recharged inside or outside of the headlamp using a micro USB. The Dual Power allows for it to run on our custom rechargeable lithium battery pack or standard alkaline batteries. Green Body.