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# Dark or bright

I've added two boolean logic variables, `dark` and `bright`.

### Dark

As simple as if is dark outside or not. Turn on at sunset, and turn off when sun rise.

![](/files/-LtnfmGNjlWEImyK1RVy)

### Bright

I want a boolean variable to flag when there is bright light outside. Typically I use this to for some of the rooms with a lot of windows, turn off the lights in the middle of the day in the summer.

![](/files/-LtngFag4t3h87rFCjGT)


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