Quote Originally Posted by dr. d View Post
them bulbs have no moving parts.
so i think, like OJ, it's your switch or solenoid, that's sticking... intermittent malfunction...? those are not very easy to diagnose, because they're... intermittent.
unless! it's the bulb itself, that's defective... although... it might be unlikely, as both LED bulbs are malfunctioning at the same time...

so might i inquire, what did your guy do to relieve the issue?
I had him replace the old relays and check the wirings prior to installation of the LEDs because they're really, really old. The thing is, it doesn't happen every time I switch from high to low or vice versa. It's quite random. Same as you, the electrician says it's probably the LEDs themselves that are defective when I called to tell him about the issue afterward. But I was also wondering, and as you also menioned, is it possible both the leds are defective at the same time?