If you want to go to bed at 10:30 pm, you might set a timed dimmer switch at 10 pm.

如果想晚上10点半睡觉，你可以在晚上十点设置一个定时渐暗开关。

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Tip: use a dimmer switch to create different moods with your lighting.

冰山：用交换机黯淡灯光营造不同意境。

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The results suggest that clock cells function as a dimmer switch for water control.

这些结果指出了生物钟细胞作为身体水分控制开关的功能。

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Adjusting the light is also quite nice, with a dimmer switch that runs up and down and a whole lot of brightness levels.

ENGADGET: Amazon Kindle Paperwhite hands-on (Update: video)

Think Automatic's Luminode dimmer switch hides both a processor and a mesh network connection that lets every switch in the home coordinate with each other.

ENGADGET: Insert Coin: Luminode dimmer switch runs on a mesh network, learns to light up our lives (video)

Amazon has done a really nice job with that last one, offering up a sensitive dimmer switch with 24 notches, and a reminder to use a high setting for brightly lit rooms and a low setting for dark rooms, as unintuitive as that might sound.

ENGADGET: Amazon Kindle Paperwhite review