This 12 Vdc Battery Mater is designed to replace the traditional analog battery gauges with style and precise read-out. The meter bar is made of 10 LEDs in three distinct color grades: red for low, orange for medium, and green for power levels at more than 75% capacity. Besides, when the battery is fully charged, a beautiful blue LED backlight illuminates to signal the completion of charging. Installing this meter is easy with a single circular cut-out; the product itself comes with a self-locking bar that fastens itself on the underside of the panel. This useful tool is a great addition to users' power management system.