I was researching bulbs at Osram here
http://www.osram.com/osram_com/produ...jsp?productId=
and on the right it has a link to buy the bulbs
http://www.powerbulbs.com/eu/store/s...ker%2520xenarc
I click on it, and I can buy the bulbs for a total of $105.87 USD (Compare to $175 at TRS or Amazon.com)