That’s tackling a different myth about light bulbs using a lot of energy to start up so it’s better to leave them on rather than pay the extra energy cost of starting them up again.
Here, the hypothesis is that stress of thermal cycling of the components in LED light bulb by cycling it on and off will shorten the life of the bulb and the cost of replacing the bulbs prematurely is greater than the energy costs of just leaving it on. While it’s certainly true that almost all LED light bulb failures I have seen are not the actual LEDs themselves but the other components, I’m still skeptical. Especially as LED bulbs have gotten really cheap now.






I have two color laser printers. The old one is a Dell branded printer from about 15 years ago and was about the cheapest color laser printer you could buy at the time. It has some issues now particularly with color printouts, and combined with poor Linux support meant I went ahead and bought its replacement, a much nicer Brother model. But as the old printer can still give acceptable results for some things I’m keeping it until it runs out of toner which could be a while.
On top of that I still have an HP LaserJet 4 but that’s been disconnected for a while. Still prints but desperately needs new rollers.