Rotllicht "red light" off the bike is great for visibility.

Rotlicht: Out of the box review for a one of a kind rear blinker

by John Brown, HaveFunBiking

Along with Lupine’s SL-A7 we received a smaller package containing the Rotlicht (German for “red light”). While on the exterior it looks t be a normal red blinking light, this little package houses big features. With the brightness of 160 lumens (higher than some front lights) and an internal rechargeable battery, this light might just be the best rear blinker ever made. Read on to see what else is hiding inside.

Unique blinker light features

One thing this light does that is totally unique, it gets brighter when you stop. Thanks to an accelerometer inside, the Rotlicht can sense when you are slowing and increase its output. Additionally, you can preset one of 20 different output settings (4 blink modes with 5 brightness levels).

Construction

As far a blinking lights go, this light is in a class by itself. Most lights are injection molded plastic, with poorly fitted o-rings designed to keep everything water resistant. How the Rotlicht differs is its CNC aluminum case. The lens and electronics are bolted into place and all the seals are snug and sure to be waterproof (although their site doesn’t give specifics as to how waterproof it is?). Also, the USB charging port is located on the back of the light, well protected from the elements, it uses a custom rubber plug to keep it dry.

How it fits

One of the best parts of the Rotlicht is how secure it mounts. The aluminum case acts as a great foundation for the lights long rubber pads. Those pads keep the light nearly immovable when mounted with the included rubber strap. I have ridden this light for a few weeks without it slipping down or twisting on the seatpost.

Moving forward

Like any product tested here in Minnesota, I am really excited to see how it handles the cold and wet winter ahead. So far the Rotlicht has shown remarkable promise even after being subjected to a cold, wet, salty ride. Stay tuned for a complete review.

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