Plural of dimmer; devices that allow you to adjust the brightness of lights, or light fixtures equipped with this capability.
From dim + -er (suffix meaning 'one that does') + -s (plural). The dimmer device was invented in the early 20th century as electric lighting became widespread.
Restaurant dimmers are psychologically brilliant—restaurants use them to create intimate atmospheres because dim lighting literally makes people relax and eat slower, so they buy more drinks and desserts.
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