Exposure Lights Blaze Mk.1 Taillight Weight: 80g, output: 80 lumens red light, power: 1400mAh Burn time- 6-48hrs depending on OMS mode, emitter- 1 x Cree XRE red LED, Cable Free Design (CFD)- a primary feature unique to Exposure Lights Function button: 3 color mode and fuel gauge indicator