Solar charging power supply, free wiring, easy installation. Bright, clearly visible day and night. Wide viewing angle, no need to stick to a specific angle like the LCD screen. 3-level automatic brightness adjustment function, automatically changes according to the external light intensity, clearly visible under strong light and light in the dark. Built-in 500mAh large-capacity lithium battery, high temperature resistance to meet the high temperature of the car center console. The larger capacity battery improves the battery life when there is no sunlight. For general family car use, the car is usually parked in the open air and generally circulates during the day. Solar energy is basically self-sufficient and does not require additional charging. With battery power monitoring function, when the battery power is low, a low battery reminder "-Lo-" will appear once per minute until it is forced to shut down to avoid draining the battery power and affecting the battery life. After power