Changes

<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/fR67hovp04Y&hl=en&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/fR67hovp04Y&hl=en&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>

video show the strobe alarm clock action:  

http://www.youtube.com/v/fR67hovp04Y