I’m not happy with the pricing of the UV bulbs. They can be bought on line much cheaper than the 150 plus that I was charged. I also found out this go around that the bulbs are only good for 1 year when a previous tech said they were good for 2 years. I was told by the tech if I replaced myself I void some kind of warranty. I don’t understand what warranty I would be violating. If I have a receipt that shows I purchased a bulb this would be no different than the tech replacing the bulb. This issue would be mute if you evaluate your pricing on the bulbs.