Philips Wake-up Light HF3505/60 Manual page 14

Adjusting the display brightness
Press the display brightness button to adjust the display brightness. You can adjust the display brightness from high,
medium, low to off. If you choose the display to be off, you can see the display again by touching it.
Note: We advise you to set the display contrast in a dark bedroom. Choose a contrast level that is optimal for you to see
the display at night.
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