Machfally USB charging smart sensor brake bicycle riding tail light mountain bike COB warning light

product data:

Brightness: 100 lumens

Battery: 3.7V 500MAH polymer lithium battery


Suitable handle diameter: 12-32MM

Always on 100% brightness, full battery life about 3 hours

Please note: Standard logistics roughly lists a 15-day shipping window for this specialty item, but customers will receive secure doorstep delivery significantly ahead of schedule via our tracking-enabled express shipping pipeline.