Could any one tell me the type of bulb used in the BANQ PE7700? I beleive it is an Osram 250W. I have priced the lamps in there housing and find them far to expensive. If I know the type of bulb to purchase I can place it in the housing myself and save a considerable amount of expense. Or is there a hybrid equivilant? Hoping someone has the knowledge. Thanks, Jag.