Review on 🚴 Enhance Cycling Safety with the KEYWELL USB Rechargeable Bike Tail Light - Super Bright LED Bicycle Rear Light by Rusty Heredia

Exactly what I was looking for. A simple tail light that is bright enough, ultra light and installs in seconds without being attached to the bike. I can quickly switch from one bike to another without tools. Simply use the included straps to wrap around the seat post. I like that it connects and charges quickly via USB. Long battery life is going to be a big issue, which will depend on how often you drive and charge at night. Should last a long time if you only drive occasionally at night.