Haofy LED Car Clock, Digital LED Car Clock for Boat Plans with Clear Display, Universal Fit, 4.5-30V Input Voltage, Blue, Green, Red (BLUE)

General Description: This digital LED car clock is ideal for boats and other vehicles. It offers a clear and bright display, making it easy to read even in the dark. Made of high-quality materials, this clock is durable and wear-resistant. Its stylish design enhances the look of your vehicle while being easy to install and remove. Technical Specifications Material: ABS Available Colors: Red, Green, Blue Input Voltage: 4.5-30V Backup Battery: CR1220 (battery life of over 12 months without power) Working Current: Power supply and key lead cable: > 120 mm Operating Temperature: -10 ~ +65°C Operating Humidity: 10-80% (non-condensing) Operating Pressure: 80 - 106 kPa Size: Approx. 48x29x21 mm / 1.89x1.14x0.83 inches Installation To install the clock, insert the CR1220 battery into the holder, observing the correct polarity ("Up Positive, Down Negative"). Then connect the clock to the power supply following the "Red Positive, Black Negative" method. Use The clock displays the hours, minutes, seconds, and date, and has a timer function. The controls allow you to switch between hour, second, date, and timer modes. After 30 seconds of inactivity, it automatically returns to hour mode. To change modes, simply press the corresponding button. Other information: Note: If the battery is not installed or is installed upside down, the time setting will be lost when the power is turned off. The clock will continue to function even without a power connection if the battery is installed.