

Energy savings from LED light are significant, thus cuts slightly your electricity use. More so, energy conservation is now becoming more of a concern. LED light is long life, for about 20 years, so they say. Philips brings innovation when it comes to lighting technology. But then, Philips SmarSleep Wake-up Light 36 seem to take over Philips 3520 when it comes to more functionalities.

Again, as I have said in the beginning of this post, as for me, Philips HF3520 is the best among all the versions of Philips wake-up light therapy alarm clocks. There are a few versions of Philips Smartsleep Wake-up Light alarm clocks nowadays. The mimicked sunrise and sunset improve your wake/sleep pattern and your well-being. Philips SmartSleep Wake-up Light HF3520 alarm clock provides you with a sound and light therapy, too. Set it for the “sun to set” and for the sound to dim at 30 or 60 minutes later, grab your favorite book and read it until you will be drifted off to sleep. That functionality will slowly and gently wake you up to start another day feeling refreshed and in a good mood as you go about your daily routine.Īnd when it’s time for you to relax on the bed, it can be used as a reading lamp with 10 brightness settings. When it reaches bright yellow, your set natural sound alarm (there are 5 choices – gentle piano, bird’s tweet, Zen garden, seaside and jungle sounds) goes off. Its light gradually increases within a 20-minute time frame – from a cool red to soft orange glow until it reaches bright yellow. Philips SmartSleep Wake-up Light HF3520 functions both as sunrise and sunset simulators. It effectively helps me in adjusting to my graveyard schedule. And the refreshing feeling being awaken by a simulated sunrise is similar to the real sunrise. My room is close and dark during the day, and when my light alarm clock starts off, it is like I am waking up to a sunrise. And it turns out that old model is now replaced with Philips HF3520.Īlthough Philips HF3520 wake-up light alarm clock is mainly intended for countries with less sunrise, I, who live in a tropical country, which has sunshine almost all year round, use it for my night shift work schedule. I own an old model of Philips wake-up light alarm before, but that version is not available anymore. (If you are interested in this product, please refer to the answered questions for your preference.) Why Philips SmartSleep Wake-up Light HF3520 is the best?īecause it got 10,602 ratings and a 4.4 out of 5 star reviews recently. Out of the 10 best light alarm clocks there, I picked one which is the best of the best – Philips HF3520 wake-up light therapy alarm clock with colored sunrise simulation and sunset simulation.

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