A glowing light that screws onto a bicycle wheel valve (nipple). It works via a vibration sensor: it lights up while the wheel is spinning and turns off when the wheel is still.
- Body: half aluminum, half plastic
- Independent circuit: vibration sensor unit plus LED unit
- Power: 3 AG10 button batteries included
Before first use, unscrew the back cover and remove the insulating film between the batteries (or the battery and the spring), otherwise the circuit stays open and the light will not turn on. Observe battery polarity when installing.








Brand:
QY
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