Oh! I didn't know that. I wonder why the conversion kits exist, then?

I am not sure, but I am going to check with my electrician friend.

I am back. I just called the electrician and he said i don't need converters, but watch the lights with dimmer switches.

The converters were for voltage conversion before they were able to build transformers into bulbs.

Most of my lights are on dimmers. Can I still use the LED bulbs?

There are bulbs labeled for use with dimmers. Make sure you are using those bulbs.

Well, I am so glad I posted this question! That will save me a lot of $$$. Thank you!

There are still reasons to consider using something other than just the bulb. If you want an enclosed trim, the bulb type will have a significantly shorter life especially if they are in an insulated ceiling. If they are in an insulated ceiling, you may want to seal up the air loss through the can if the can is not marked ICAT, and some of the "kits" do that. There are actually at least 3 types of systems for recessed LED lights. One with an external transformer, one with internal transformer, but purpose built for a recessed can, and then the bulbs. If you are using bulbs in a housing that is in an insulated ceiling, you need to make sure the bulb says it is rated for use in an IC (insulation contact) housing, or it won't last as long as advertised.

Dimmers are another factor. If the bulb says it is dimmable, you still may need a special dimmer. If you are trying to dim only two lights on one switch, it may not dim as much as you would like. This is where the "kits" can also be beneficial.

I suggest starting be getting enough regular style bulbs to put in all the more open style trims you have to start, less those that only have two or fewer fixtures on a dimmer. Then you can try them out to see which dimmers need replaced and which smaller load circuits may need either a more expensive dimmer or maybe a different system.

Fred sounds like an electrician. He is going way over my head. I have just recently changed my bulbs [few weeks] and not had a problem or burned my house down! I may have other issues later, I don't know. Good luck!

It won't burn your house down. It may disappoint or perplex you if bulbs in certain locations tend to fail unexpectedly while others last forever.

Hmm. Maybe I will have my electrician take a look. Our house is old and in the past when I've had work done, they've said things weren't done properly. Or maybe I will buy one bulb to start to make sure they fit in the housing and watch how it dims, looks, etc. In the rooms with dimmers, there are at least 6 bulbs on the one switch. If I replace only one bulb, will I be able to tell much? Thank you both so much for your responses!

Buy enough for at least the whole room. The dimmer won't quite work the same if you just have one bulb or try to mix LEDs with the regular bulbs on the same dimmer.

Leviton

Will do!

Costco has the conversion kits - work great! You can get 'em in Home Depot also. Very easy to install.