Double ended halogen bulb with blue tint

[RAG Auctioneers 10]

I am looking for a 500 W double ended halogen bulb with a blue tint.

 

Anyone know where I can get such a thing? (They do exist :-)

[Lukeness 10]

what is this used for?

[Guest Guest]

Photograpy... An "Ultra White Light"

 

[RAG Auctioneers 10]

As Edmund has stated, we will use it for photography. (Replace a standard halogen bulb).