The NiteRider Lumina OLED 1100 Boost is an innovative bike light that removes the guesswork related to battery life, allowing you to plan your next ride safely with complete confidence, day or night. The OLED multifunctional digital display screen delivers precise battery run times as a percentage and actual time for the Lumina OLED's 9 lighting levels. The Lumina OLED 1100 Boost features a LED and a custom engineered reflector, producing a generous long-distance spot and wide flood beam pattern. With Boost Mode providing a stunning 1100 lumens of maximum light output, this makes the Lumina OLED highly capable for use when navigating through diverse riding conditions. The Solas 100 has two powerful LEDs, 4 modes (2 flash/2 steady) and is USB rechargeable. We've implemented what we call "Group Ride Mode" for cyclists who still want to stay visible and safer but not distract others in the pack.