Review on 🚲 OLIGHT RN 180 Smart Bike Taillight - 180 Lumens, Break Sensing, Rear Light with 260° Visibility, USB Rechargeable, Waterproof - Ideal for Road Cycling and Commuting, Fits All Bicycle Types - 8 Modes by Dave Lopez

Very disappointing overall, dollar store lamp would have been more functional. After charging overnight, the green indicator will flash to let you know it's fully charged, but the indicator will be fully discharged and won't turn on. After turning it on and 10-15 minutes of use, it freezes and you can't turn it off or change the mode. Sometimes it even turns off after 10 minutes of use and won't turn on again until it's recharged, even though it took 12 hours to charge before. The light is supposed to turn on and off after holding the button for a few seconds, and you switch modes with a single click or double click. These features were randomly swapped and can be seen in the attached video. Comparable to a broken NiteRider Omega 300 with similar issues which I have two 3 month warranties on. I'm sure you can expect endless warranty hell with this light. The same problems with the microcontroller.