When I hear a question like this, another pops into my mind; build, or buy? Do you want something turnkey? Is cost a factor? Do you mind putting something together?
Last year I replaced the fluorescent bulbs in my kitchen ceiling fixture with LEDs. Two LEDs replaced four tubes. The package listed how many hours they should last, and I think it came to something like 35 years. I should never have to change them again.
I was looking for a replacement for the under-counter fixtures. They use 8" fluorescent tubes, and like the ceiling have to be changed every couple of years. I thought about making my own. I searched through a lot of on-line stuff, including surplus sales. I ended up buying a bunch of 27 LED flashlights from Harbor Freight for about $3 each. I was originally going to desolder all the LEDs and make my own fixture but I got lazy. I removed the circuit board with the LEDs. I cut off the switch. I scratched off a bit of the paint on the circuit board and attached wires. I found a bunch of wooden slats from a broken window blind a neighbor had thrown away. I cut two to length to fit under the counter and glued the LED panels on them (four per slat). I wired the panel in parallel, and powered then by a USB charger. The charger puts out about 5 volts, and the LEDs were powered by three AAA batteries; 1.5 x 3 = 4.5 volts. Screwed the slats to the underside of the counter, and they work great. If anything goes out, I've got a bunch more of the flashlights, and USB chargers - even ones that run off of a car's 12 volts, are cheap and easy to find.
Thinking about using these for a future project:
https://www.goldmine-elec-products.com/prodinfo.asp?number=G22276