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Close-up of a green illuminated power switch with I O symbols, mounted on a gray surface, representing electrical control, power on off, and industrial operation
Mixer. Professional audio and sound mixer control panel with buttons and sliders. Concert sound control panel.
Green On and Red Off Power Button Vector Illustration Graphic in EPS Format for Interface Design and Technology Icons
Electrical engineering is checking the electrical control panel by opening the panel cabinet lock.
This image shows a white wall light switch with two buttons (double switch) mounted on a light gray wall surface.

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