E3 Pure 3Description The E3 PURE 3 has three amazing features: its sleek, bright and lightweight. In fact, it is one of the smallest and brightest dynamo lights with an aluminum body that is approved for use on German roads. With no switch, the E3 PURE 3 runs nonstop, which means that you hardly ever need to think about it unless you exceed the LEDs lifespan of over 100 years.* So with this light, you are in safe hands, day and night. The Terraflux 2 lens is