As you know, Azo is a very slow paper. You could use your cold light head but the exposure times could be very long. I have no idea because I do not know what effective illumination you could deliver to the paper. You could always give it a try. I use a R40 300 watt bulb and print for between 10 and 25 seconds. I have to believe that in today's global marketplace you cannot get access to a bulb that is consistent with your power delivery. My first reaction is there are a lot of illumination in Hong Kong and someone there must be selling some bulbs. Worse case you could order one from the states and make sure that it is packed well. After all, they are only $5 US.

There is nothing better then using the right tool for the job.

Cheers!