I fitted the STEDI LED bulbs May 2022 and odometer reading 240,000 KMs. Current odometer reading 264,400 KMs. If I had to estimate how many operating hours then it would be at least 3-4 hours weekly plus another 40 hours per interstate road trip = 200+ Hours per annum.
I consider the STEDI LED bulbs to be the best $ value upgrade and will definitely purchase them again. Being contrarian, I have another set of a different cheaper brand LED bulbs as backups for immediate use [purchased in 2022] until I can place that order.
Hoping that these STEDI bulbs do last 5 years as claimed by so many Chinese brands.
Perhaps by then STEDI will have an even more premium quality replacement.