Whether you're headed out for an all-night excursion or need max light output for that final lap, NiteRider's MiNewt Pro 770 is perfect. An amazing 770 lumens turn night into day for between 2.75 and 35 hours depending on the output setting. There are high, medium, low, and energy-saving walk modes along with 3 flash settings. The whole system weighs in at under 480 grams and attaches to handlebars (up to 31.8mm in diameter) and helmets. Plus, with a low battery indicator, you'll never get caught in the dark.