I still have some of the earliest modern LED bulbs on the market–old Philips ones, the AmbientLED (i think) with the yellow casing and large heat sinks.

I bought a couple of those for an enclosed fixture inside a skylight. The ceiling height there is 20 feet, plus another 2ft into the skylight tunnel. I bought those LED bulbs (at $40/each) because I never wanted to change them. Both bulbs were still fully functional 15 years later. I have since sold that house, but I bet they’re still functioning.