Savio 18 Watt UVinex Bulb - 4 Pin

As with many companies, Savio apparently decided to modify their product (two pin UV bulb to 4 pin UV bulb) so that customers would have to upgrade their transformer system in order to use the "new" UV bulb. Making a perfectly usable system obsolete is not logical. The consumer, of course pays $$$. Very displeased by this action!