I have purchased the $15 roll off amazon and love them. I only went with white and not the multicolor, and I do not dim them. I actually put a set in my truck cap here in Wisconsin and they have worked well for several years. The only issue is the adhesive is weak so I reinforced it with 3m automotive tape.
I bought 4 rolls off Amazon about 4 or 5 years ago, something like $13-15 per roll and some connectors, 2 warm spools and 2 cool spools, crazy backward terminology, works for the technician but people who do other things have to stop and do a mess of thinking to sort it out, just me ranting, but anyway turns out the daylight ones were what my wife liked in the kitchen. There were already almost concealed switched outlets under the cabinets for some existing fluorescents one of which always buzzed, replace one then another until finally I said enough and then one I replaced whereby I went on a LED craze for the whole house which worked out using Costco bulbs. Yea $6-7/bulb.
The LED strips were the ticket for light under the cabinets, and they worked perfectly at least until we sold the house last summer.
One qualm though is that the bricks that power them stay warm and I suspect that the energy efficiency is not good, maybe better than incandescent. But it was cheap and it worked and made a big improvement in the kitchen because it was uniform everywhere. I kept intending to put them on a watt meter to see but really they worked so well I just did not want to know. I suspect the bricks will burn out first but maybe not.
The florescent nuisance drove me to it but it was the was low cost installation of the LED strips that sealed the deal, but at $10 a foot as Bert_ posted is out of line with me, for that particular use. Perhaps he is pulling our legs. I have about 23 feet I want to light in two different rooms in my new house, for under $50 not $230, Just saying. And thanks Bert for posting that, reality may set in and that is where I wind up using my soldering iron and speaker wire to hold line on cost. I do like the idea of a solid installation.
And I do know that the Amazon stuff is hit or miss. I have had several LED bulbs just start flickering and go out and my RV LED light have been a constant hassle and it is cheep Chinese stuff being pawned off on us at ridiculous prices because we pay it. I bought another string off Amazon for my RV to use just the same way as in house but a lot more work getting in in all the right places only to have some of the lights start flickering. And I had paid careful attention to get strips with the correct drivers for voltage variation from RV 12 volt power.
I really am interested it finding a supplier who will filter the junk for me and of course charge a fair price, and it will not be $10/foot for residential purposes. commercially it is worth it if truly installed and done.
If you want to make fun of me for splurging on $7 bulbs just be forewarned that It was just 3 or 4 bulbs at first for the stay on all the time ones and others as the prices kept coming down, and a few other defenses I can line up. Every time the price dropped I would throw another bulb or two in the cart. That way it is not real money, just play money.
