There are two modes for the brightness and colour setting: Daytime mode and Nighttime mode. You can set the different colours and brightness in different two modes, then you can turn on/off the headlight to switch between Daytime and Nighttime modes after you connect the Yellow wire( in the power cable) to the headlight fuse.
This EGT gauge is used to further grasp the combustion condition of the engine by observing the temperature of the exhaust gas. Therefore, as long as the fuel supply of the engine is insufficient, the temperature of the exhaust gas will soar. Once the temperature is too high, the exhaust valve and the internal piston maybe will be damaged.
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