The pin base is more expensive than normal lightbulbs but this brand was a bit cheaper than others. Works fine with the dimmer as well.

These are supposed to be dimmable. They have a nice light/brightness, but they don't last. Do not see any flickering as reported by others. This seems like an extremely short life for led lightbulbs.

False, unethical advertising regrading expected bulb life. What are the chances that all four leds in the box are defective?