This is supposed to be a decent company but I didn't know they sold direct. They have area reps. Where are you thinking of purchasing these from?

I'm in San Francisco. I can't afford to change out my whole house's lighting but thought I'd put in some undercab and cove lighting and maybe some cans in the kitchen and bath during a remodel. The cost is challenging and so are the lack of trims and color in LEDs. I was impressed with some of the Prima light quality and design.

Retrofit lighting is very common method to home improvements. LED retrofit lighting is becoming more and more common as the benefits of LED retrofit lighting become more and more obvious.

Here is a link that might be useful: Retrofit lighting

The most crucial element of retrofit lighting is efficiency. Most retrofit lighting fixtures are far more efficient than standard lighting fixtures. ESI focuses on LED energy saving technology. We are involved in design, manufacture marketing and installation of our products. We test, guarantee and fully support all our products.

Here is a link that might be useful: LED retrofit

LED retrofit lighting, on the other hand, is much more efficient than any of these other retrofit lighting technologies. Indeed, LED retrofit lighting fixtures bring new meaning to retrofit lighting insofar as the fundamental purpose of retrofit lighting is to economize and make existing lighting systems more efficient.

Here is a link that might be useful: LED retrofit

How much do the Prima lights cost?

The Prima lights vary, of course. Some are ajustable pivots, some have drivers some don't. They come in diff. sizes. I'd say the cans w/ drivers are probably between 130. and 200. each. There are also many other types of lights; some very beautiful sconces, strip lights, etc. that are all priced differently.