Ultrablinker Blink-ē tail light
These things are way cool and mount just about anywhere to give your that bespoke dynamo tail light look without actually having to have that bespoke dynamo trouble.
C’mon, the world is complicated enough!
USB chargeable etc.
2 hrs to fully charge, 8 hours on, 16 hrs blink.
Way simple, and looks great! YOU look great, BTW.