A 35W light bulb for my 2003 Corolla costs about $27 in Repco. You can get a pair shipped for $3 from Ali Express, or about $10 from ebay. I assume the quality is lower, but heck buy ten and replace them regularly if needed. Changing them takes about 2 minutes. Any thoughts on this? Some can be higher current, 35W currently fitted, I wouldn't want to go a lot higher as it impacts the battery at least a little.
One thing I noticed with the LED bulbs is they're often bigger. With the Corolla the bulb is quite small, you just mount it to a fitting and the fitting goes in tightly. I wonder if the LED bulbs will actually fit in the space available.