KRY COMBO AVENUE F-65/R-30 USB BLACKHeadlight and tail light combo pack featuring a 65 lumen headlight and 30 lumen rear light Modes include High stead, Low steady, Daylight pulse, Nitelight pulse and Economic Flash for both lights USB rechargeable no batteries to buy or replace Side illumination ports allow cyclist to be seen when riding across traffic lanes Memory Function Lights turn on at the last mode it was turned off Power saving function 10% power or less, lights will