Single-on double-control switch

The invention discloses a single-on double-control switch. The single-on double-control switch comprises a switch panel base, a water shield, a switch and a luminance regulator; the switch panel base is connected with the water shield; a gap is formed between the water shield and the switch panel base; the switch is arranged on the surface of the switch panel base; and the luminance regulator of which the top part is equipped with a luminance display is arranged is mounted at one side of the switch. The single-on double-control switch is nice looking; one switch is used as a controller of a button, and another one is applied to the luminance regulator for regulating; the operation is simple, and the use is convenient.