I was actually about to give this a five-star review. Barring a few ease-of-use problems, and things I thought should be customizable but were not, I was immensely satisfied. It would not be an overstatement to say that this unit provided the best wake-ups I'd ever experienced, and in long, dark winters, that's incredibly valuable. A few days ago, that's the review I would have written.

Unfortunately, today, it did not turn on to wake me up. The birds were singing, but the light was off. I was confused. I fiddled with it all morning before the sad truth dawned on me. The built-in light bulb was dead, broken or defective. After a month of use, my wonderful new alarm clock no longer functioned.

As it stands, this is a soulbreaker. I realize these things happen, but, as a reviewer, I have to be honest about it. I don't know how frequently this occurs, but potential buyers should be aware, even if this scores me "unhelpful" votes. I was unable to ascertain how to replace the lighbulb, if it's even possible, or what the cost of such a replacement would be.

I'm saddened and dismayed to have to submit this. I thoroughly enjoyed waking up with this alarm clock, but if its longevity is so brief, I cannot recommend it, and unless that somehow changes, this review will remain, unfortunately, as is.

If I have any luck with Philips tech support and/or replacing the bulb, I will gladly change this review and go back to joyously using the product.Get more detail about Philips HF3480 Wake-up Light.