What's loved by some, might not be so loved by others. So instead of compromising, Knog has made 10x designs for three lights. Some are mild. Some are wild! But the striking form does not outshine the excellent function. Super bright, AA battery-powered, long runtimes, replaceable straps, and side illumination. So whoever you are, find your POP! Features: - RUN TIME : 7 hrs (steady), 200 hrs (eco flash). - LEDs : 1x Super-bright SMT LED - SIDE ILLUMINATION : ?Giving riders 180deg visibility - BUTTON : Longer button push on (0.75sec) prevents accidental activation of light. Short presses switch modes continuously. - LOW BATTERY INDICATOR: Displaying when the batteries are low, one of the LED's will remain on for 5-seconds after the light is switched off to indicate that batteries need changing. - ATTACHMENT : Tool-less attachment for seat posts and frames of 22-32mm diameter. - OUTPUT: 5 lumens - DIMENSIONS : 25 x 25x 70 mm - WEIGHT : 53g - MATERIALS : PC-ABS plastic housing and polycarbonate lens. - BATTERY : 1x AA Battery