Big things come in small packages and the NiteRider Lumina Micro 650 is the proof. The Lumina Micro 650 delivers a powerful punch with 650 lumens of light output, helping you to safely navigate your ride. Allowing you to see and be seen. As with all Luminas in the series, it features a low battery indicator – when the power button changes from blue to red color this indicates that there is approximately 15-20% battery life remaining.