300 lumen cree light with an additional set of be seen 30 lumen leds that glow both red and white the light can be used as a high power seeing light or a get home safe front or rear light micro usb charging indexed and intiative dial function makes this light easy to use with gloves and at night multi positon tooless bracket offers unlimited options for mounting the light on the bikes and helmetweigth lumen output 300burn time high 2 hours med 3 hours flash 7 hours strobe 7 hours