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    Wake-up Light


    Frequently Asked Questions

    What can I do with my Wake-up Light Zzz function?

    The Philips Wake-up Light Zzz is a dusk
    simulation function which gradually dims the light and sound for 5 minutes to 1 hour before you go to sleep.

    No need to turn it off

    The light and/or sound will be switched off
    automatically after the set period of time.

    The information on this page applies to the following models: HF3550/01 , HF3531/01 , HF3520/01 .

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