Philips HF3520 Wake-Up Light With Colored Sunrise Simulation, White. Philips HF3520/60 wake-up light with colored sunrise simulation. Philips' #1 best-selling Wake-up Light; Only Philips Wake-up Lights clinically proven to work. Colored sunrise simulation wakes you up gradually with natural light. Choice of 5 natural and calming wake-up sounds. FM radio and a tap-to-snooze alarm clock. Bedside light dims and sound gently send you off to sleep at night. Dimming light and sound gently send you off to sleep. Choice of 5 different natural wake up sounds.