Exposure revo dynamo light only the revo is redefining the use of dynamo lighting exposure lights have perfected dynamo technology making use of a dynamo efficient and powerful enough to use off road for marathon expeditions the light builds quickly without flickering to a maximum of 800 lumens at 15mph the revo has an impressive stand light that will bring the output back to the maximum in seconds of a restart and ensure youre seen when stopped on the road the revo is the ultimate commuting