A quick review of the features, functions and capabilities of the Philips HF3520 wake-up light sunrise simulation alarm clock. I use the HF3520 everyday as it has significantly changed my wake up routine for the better thanks to the sunrise simulation feature. This devices isn't perfect as I highlight during the video but it does a great enough job on the sunrise simulation that I can ignore it's faults and would recommend it to anyone who has the same difficulties as me waking up in dark early mornings. The Philips HF3520 is available for purchase from Amazon: http://amzn.to/1mO9miw (USA) http://amzn.to/2fvJaKn (Canada) I had the lower end model, HF3510, before and returned it for this upgraded HF3520. The main reason I prefer the HF3520 is for the ambient light sensor and the second alarm. There are a couple other differences but honestly I feel they are insignificant. Video demonstration of the Sunrise Simulation: https://www.youtube.com/watch?v=ms3t1Lc1gMI Listen to the Natural Alarm Sounds on the HF3520: https://www.youtube.com/watch?v=xTVXMvHfo4I You can read my detailed review on the HF3520 here: https://wakeuplightreview.wordpress.com/2015/10/05/philips-hf3520-wake-up-light-review/ ► For More Awesome Gear ◄ Subscribe - http://bit.ly/1Uzynun Twitter - https://twitter.com/MrDavidZhang My Video Gear - http://bit.ly/davidzhangyt