I found a supplier for access lights of commercial/high-end buildings [1] that mentioned 200,000+ hour L70 ratings. There apparently are 200,000 hour L70 fixtu

I found a supplier for access lights of commercial/high-end buildings [1] that mentioned 200,000+ hour L70 ratings. There apparently are 200,000 hour L70 fixtures [2], but I haven't found any 250K, 300K, 400K, or 500K hour units. If we ignored form for pure functionality to get the full-rated life of the bulbs, I wonder what the design/specs would look like. The longest DC power supply I could quickly find a mention of is an Antec line, so I wonder what a really long-lived (50-100 year) DC power supply design would look like. [1] https://www.accessfixtures.com/led-lifetime-l70/ https://www.accessfixtures.com/led-lifetime-l70/ [2] https://www.google.com/search?client=safari&rls=en&q=200000+hour+led+l70&ie=UTF-8&oe=UTF-8 https://www.google.com/search?client=safari&rls=en&q=200000+...