一些开关也包含一个可变电阻器，控制仪表板灯的灯光亮度。
Some switches also contain a rheostat to control the brightness of the instrument panel lights.
内装元件主要有：万能转换开关，按钮，电流表，指示灯等，可按用户要求装其他仪表。
Install inside component: Omnipotent change-over switch, press the button, an ampere meter, Indicator lamp wait, can load other instruments with according to user "s request."
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