I have two Dazor 3-light lamps that I bought used when a jewelry manufacture went out of business about 15 years ago. The same bulbs that came with it at the time are still in the lamps. I went to replace them with what I thought were brighter daylight high K bulbs and found the new bulbs were dimmer (duller) that the originals. I returned them and have not ventured back into the confusing search for replacements.
The current bulbs are Phillips 15 watt bulbs. F15T8/D is the model number on the bulb and may not be the same as your particular Dazor. You can see mine here at this link to my bench. Would you mind sharing the bulb combination (type/brand) you placed in your lamp? Thanks.