Not sure what you are asking exactly about but while i was searching i found a supplier in china selling these halogen tubes as mine have blown in 2 months of using the heater. contact them and see where you get. i'm in china so it'll probably be easier to get replacements. anyway hope this helped. good luck!
http://www.alibaba.com/product-gs/50207451/Halogen_Tubes.html
Deepak
January 2009