Points:1Personalized DesignWhen your wheels start to move these led tire valve caps will automatically flash and form a colored circle making your car/motorcycle/bike look beautiful.2Vibration SensingThese led tire valve caps adopt an intelligent sensing design so they will light up as long as it feels a slight vibration and each light will last for 15-20 seconds.3Waterproof DesignThese led tire valve caps are made of PVC shell which is light-transmitting durable waterproof and can be used on rainy days. But please don't put it in water for a long time.4Easy to InstallOur led tire valve caps are easy to install and remove without any tools. Everyone can screw the car tire cap on the tire valve stem in seconds.5Applicable ModelsOur led tire valve caps are suitable for most types of cars motorcycles bicycles and electric vehicles and are suitable for American and British valves. But the French valve is not available.Features:1. Our tire valve cap lights are designed for bikes cars and motorcycles.2. More energy-efficient with light & motion sensors.3. Waterproof durable high impact rust-resistant.4. Auto shining with no switch LED auto turn on when moving. precautions and solutions to common probl:1: The steam wheel consists of three AG10 batteries. When installing please align the positive and negative poles correctly no word end face spring2: Be sure to put the battery into the black insulating holster do not expose it otherwise the battery and the metal of the lamp housing will be short-circuited which will cause the battery to discharge and heat up and the battery will heat up. The power went out after a few minutes.3: Be careful when twisting the lamp head. Make sure the metal strip in the groove on the edge of the light head is in good contact with the metal base (e.g. if the metal is too close to the inside you can manually pull it out a bit but be light!)4: If the hot wheel does not light up under normal conditions please adjust the length of the spring to ensure that it is in full contact with the battery (do not use too much force it is easy to cause the spring to fall off) otherwise it will not light up.Specification:Name: Tire Valve Cap LightsColor: blue/red/green/colorMaterial: rigid PVCApplicable: electric car/motorcycle/car/bike (beautiful mouth/english mouth)Power supply: three AG10 electronics (self-contained)Power source: button batteryProduct list:2* Tire Valve Cap Lights Origin:Mainland China Certification:none Model Number:Hot Wheel Spoke Light Mounting Placement:Tyre Valve Caps Power Supply:Battery