If Philips Wake-up Light wakes you up too early, reduce the light level that you use for waking up. Problem solved!
Philips Wake-up Light should not wake you up too early. However, it could be that the first few times using the Wake-up Light you wake up too early.
If Philips Wake-up Light wakes you up too early, reduce the light level that you use for waking up. Problem solved!