Like many others, my light bulb burnt out within a few months. Rather than send it back and get another one that will burn out just like my last one and wait a few months for the whole process, I took matters into my own hands and started taking it apart.
Here is how you replace the light bulb. -Remove 4 rubber pads on feet and remove 4 screws. -Try and not break plastic as you start prying the cover apart at the seams(I had to cut mine in one spot above the controls to get it to come off). -Remove cover. -Inside you'll see another white cover, remove the 4 screws and then the cover. -Remove 4 small screws holding two white brackets that hold the cfl bulb down. -Remove the two white brackets. -Remove the metal jacket that covers the cfl bulb. -Bend two black plastic clips back and start prying bulb off base. -Use a flathead screwdriver to free the cfl bulb pins from the receptacles on the circuit board.
For installation just go in the reverse order. The light bulb is a standard CFL 4 pin G24q-3 base, 26W/827. I found one made by Sylvania at Lowe's for $7. Hopefully the Sylvania bulb lasts longer than the Philips. From what I understand, CFL bulbs are not meant to be dimmed, they need to be full on or off to get the expected life out of them. I suspect the gradually brightning of the bulb by the alarm clock is what makes the bulb life so short.
The metal jacket that went around the bulb did not fit perfectly over my new bulb so I just clipped the wire and threw it away. The light still works with it removed. The CFL has mercury inside of it so dispose of it accordingly.
Hopefully this helps some other people bring their wake up lights back to life.