Unfortunately most riders find out that their charging system has failed when they end up broken down on the side of the road. A little advanced warning can keep you from being stranded in the middle of nowhere. Now you‘ll know at a glance whether or not your charging system is working properly. The LED battery gauge is an array of LEDs indicating the operating voltage of the bike’s electrical system. Green represents the normal operating range, amber means that the system is not charging, and flashing red will alert the rider of an impending stall or the possibility of damage to the battery and/or sensitive electronic components on the motorcycle. Simple two-wire connection and a compact size (about 2x3/4x3/16”) make installation a breeze. A daylight sensor automatically adjusts the brightness of the LEDs.