Solar charging, lithium battery storage, wiring-free, maintenance-free, no battery replacement, efficient and environmentally friendly The car tire wheel light has a light and motion sensing control system. In a dark environment, the car automatically flashes at speeds exceeding 25km / h, reminding the car or pedestrian to avoid, reducing or avoiding traffic accidents. Below this speed, it will turn off automatically after 2 seconds. It can be used as a warning even in all severe weather, and the safety factor will be greatly improved. LED car wheel tire tire valve cap light is covered with high-quality silicone, corrosion , aging , high / low temperature , excellent water , to avoid high pressure water damage to the light When the vehicle is running, the light will alternately flash with three colors of red, blue, white, and green, and there will be gorgeous lights. There are multiple flashing modes for you to choose (press the red button to select the flashing mode). Easy to install, just screw the screws to the valve of the wheel, usually used for bicycles, motorcycles, , SUVs and trucks, American standard faucets. Easy to install, just tighten the product on the gas nozzle on the car tires, the process can be completed within 15 seconds of a single person. Solar charging, lithium battery , free wiring, maintenance-free, no need to replace the battery. High brightness LED light can avoid accidents when driving at night. Small, light weight, durable and waterproof. With vibration sensor and light sensitive system. Auto stop flashing when the car is not in motion or when car speed below 25km/h at night. 15 kinds of flashing modes can be for you, the faster the speed, the more flashing 4 Modes of blue green red white color light Blue green red white light breathing Blue green red white light flashing Blue green red white light jumping Blue green red white light all at the same time Push the red bottom to choose 1/15 modes as you like. size:valve light diameter of about 4.5CM, height of about 2.4CM. Material:plastic colour:white Package Contents: 4 * Valve light 1 * wrench 4 * screw Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.