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What does the Zz function on my Philips SmartSleep Sleep & Wake-Up Light do?

The Zz function on your Wake-Up Light is the fall asleep or dusk stimulation function. Read here to find out how to use this option.

Philips Wake-up Light Zz function

The information on this page applies to the following models: HF3550/60 , HF3650/60 , HF3651/60 . Click here to show more product numbers  ›

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