I have a 2015 Mazda 3i touring sedan. I replaced the side markers with the common 5w5 LED replacements you can find all over - blue & pink to match fog lights. Like this:

10X Pink / Purple T10 158 192 168 147 W5W 5050 5-SMD LED Car Light Bulb Lamp 12V


Doesn't matter where I get them from, they all fail really fast...like sometimes within days. The individual LEDs on them will start to flicker and/or dim, then burn out...until they are all dead. Fortunately they are cheap, but I'm sick of replacing them.

Does anyone know of reliable LED 5w5 bulbs in blue and/or pink that actually work/last longer than a few weeks?