Disclosure: I design and sell lighting products. The LED component probably will last 60 years (8 hours a day). My guess is they are using Nichia LEDs, which t

Disclosure: I design and sell lighting products. The LED component probably will last 60 years (8 hours a day). My guess is they are using Nichia LEDs, which tend to have an L70 (lifetime at which the brightness stays above 70% of the original output) of 150,000 to 300,000 hours. If you run them cool enough and at the right current/voltage, the LED itself will actually last that long. However, the LED is probably the most reliable part of the whole lamp. You might see a few units last that long, but most of the other electronics will have failed by then. And even if they have not failed, both the LEDs and controls will be seriously out of date by then. If you look at the market Dyson is in (very high-end lighting), $600 to $900 is in the same order of magnitude on price. Brands like Artemide, Marset, Flos, Roll & Hill, and Anglepoise all command prices most people would think are ridiculous. With Dyson, you get a lot more functionality than those other brands, but I would consider this purchase more like a luxury car (service life of maybe 20 years, original owner has it for 3-10 years) than a high-end watch (could last many decades with consistent service). I've seen the previous task lamp from Dyson in person, and it does use a lot of metal (minimal ABS). But that doesn't change the argument around electronics. I feel like Dyson really didn't have to make the ridiculous 60 year claim. Enough people in the target market would still buy it.