KNOG Blinder Road R70 Rear USB Price: $42.98 (as of 03/08/2020 10:38 PST- Details)

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100% WATERPROOF AND DUSTPROOF – Sealed to a standard IP67, so whether you ride through a tsunami or a Dust Bowl re-creation, be rest assured that your Blinder Road will still be shinning on the other side.
AERODYNAMIC AND LIGHTWEIGHT- The Blinder Road series is all about performance, and for a modern cyclist, weight and aerodynamics matter. The light sits right in line with handlebars and posts, so you don’t have to worry about drag, and it only weighs 75 grams.