Philips HF3520 Dawn Simulator

The Philips HF3520 is a full-featured dawn simulator that includes sounds, bedside lamp, and sunset simulation as well.  The flagship Philips model is the top seller on Amazon and has all the bells and whistles, including an energy-saving LED lamp which is expected to last 20 years before replacement.


Colored Sunrise Simulation

The Philps HF3520 boasts  a colored sunrise simulation that wakes you up naturally.  The light has 20 brightness settings and is intended to mimic the sunrise, increasing light gradually over the course of 30 minutes from dim reds, through orange hues, to bright yellow light.

5 Natural Sounds

In addition to sunrise simulation, this model features several sounds which play
along with the dawn simulation (no sound is also an option).   The sound begins to play at the selected wake up time, and gradually increases in volume (to a level you select) over 1.5 minutes.  Your sound choices are:
  • Bird Song
  • Birds in the Forest
  • Zen Garden
  • Gentle Piano
  • Seaside Sounds

FM Radio

In addition to the “natural” sound choices above, the device also includes an FM radio, if you prefer to wake up to classical music, NPR, or your favorite hilarious morning show.

Intuitive Dimming Display

The time display on this unit has an auto-brightness feature, similar to your cellphone or tablet screen.  It detects the ambient light level and adjusts the brightness of the time display to keep it readable in high light situations and un-distracting at night.

Tap Snooze

Just like your favorite blaring alarm, the Philips HF3520 also has a snooze button.  Tap anywhere on the device and it will enter snooze mode for 9 minutes, and then begin playing sounds again.

Powered by Scientists

Philips claims that their line of wake-up lights are the only ones “proven” to work by independent clinical research.  They state that their wake up light wakes your more naturally, energized, and with improved mood.


  • Anti-slip rubber feet
  • Smart snooze
  • Display brightness control: Self adjusting
  • Instore demo fuction
  • Number of alarm times: 2
  • Snooze button for sound: 9 minute(s)
  • Charges iPhone/ iPod Touch: No
  • Controlled by iPhone/ iPod App: No

  • UV-free: UV-free

  • Digital FM radio
  • Number of Wake-up Sounds: 5
  • Play music from iPhone or iPod: No

  • Increase alertness
  • Drift to sleep naturally
  • Wake up naturally
  • Wake-up gradually

  • Brightness settings: 20
  • Colored sunrise simulation: Yes. Red, to orange to yellow
  • Light intensity: 300 Lux
  • Sunrise simulating process: adjustable 20-40 minutes
  • Sunset simulation

  • Cord length: 150 cm
  • Frequency: 50/60 Hz
  • Insulation: Class III
  • Insulation Powerplug: Class II (double isolation)
  • Power: 16.5 W
  • Power Output Adapter: 12W
  • Type of lamps: Lumiled Luxeon Rebel
  • Voltage: 100/240 V

  • Country of origin: China
  • Power Plug weight: 99 gram
  • Product dimensions: 19.2 (height) x 19.9 (diameter) x14.6 (depth) cm
  • Product weight: 1.113 kg

  • Coloured sunrise simulation wakes you naturally
  • Dimming light and sound gently send you off to sleep
  • Choice of 5 different natural wake up sounds
  • Price - One of the more expensive options
  • Controls are tiny/hard to read