NiteRider: All NiteRider lights arrive in factory settings mode – press & hold the on button for seven seconds to activate  We understand lights are an integral part of your daily commute. Using a light can mean the difference between being seen or not by automobile drivers. Many of the “entry level” commuter lights are nothing more than “be seen” lights. Your overall safety and visibility should not be limited by your budget, that’s why we created the Mako™ Series. The Mako™ line offers four models and up to 250 lumens, not only allowing the cyclist to be seen, but allowing the cyclist to see as well. The Mako™ line is easy on the wallet and easy to operate.Low cost, high powered lightHighly visible in traffic = keeps you safe3 light settings – High, Low and flashTough durable designWARRANTYThe Mako™ 250 is backed by NiteRider’s lifetime warranty that covers any defects in material and workmanship, mechanical components (housings, covers, mounts and fasteners) and LEDs.SYSTEM INCLUDESLED Light HeadHandlebar Mount2 AA Alkaline Batteries SpecificationsLumen Output: 250Run Time: 12:30 – 28:00hrsWeight: 175gBattery: Alkaline AA x 2