NiteRider's Lumina Micro 250 comes in a tiny package but puts out a huge amount of light. It delivers up to 250 lumens, lasts up to 14 hours, and weighs in at only 130 grams! Plus, it installs quickly on your handlebars. You'll remain visible throughout your travels with one of four modes: high, medium, low, and energy-saving walk. An indicator light comes on when the battery is low so you know to recharge with a computer-friendly USB cord. And, should you throw it in a bag for later use, the Micro's lock-out mode ensures it won't accidentally turn on and waste battery life.