Wheel Tyre Valves Stem Caps Lights are a great way to make your car tires look beautiful and eye-catching. They have an intelligent sensing design that automatically turns on when the wheels are moving and off when they stop. They are also waterproof and easy to remove without any tools. These lights are suitable for most Applicable Models of cars, motorcycles, bicycles, etc.Installation precautions and solutions to common problems:1: The Wheel consists of three AG10 batteries. Please align the positive and negative poles correctly when installing, no word end spring2: Be sure to put the battery in the black insulating leather case, do not expose it, otherwise the short circuit between the battery and the lamp shell metal will cause the battery to discharge and heat up, and the battery will heat up. After a few minutes the power went out.3: Be careful when twisting the lamp caps. 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 out a bit, but be gentle! )4: If the wheel does not light up under normal conditions, please adjust the length of the spring to ensure full contact with the battery (do not use too much force, it is easy to make the spring fall off), otherwise it will not light up.Product parametersName: colorful tire decorative lightsColor: blue/red/green/colorMaterial: Hard PVCApplicable: electric vehicle/motorcycle/car/bicycle (US mouth/English mouth)Power supply: three AG10 electronics (self-contained)Power supply: button batteryList:2* Tire Valves Stem Caps Lights