You guys sure you're not Power Electronics / SMPS Design Engineers? I recruit in that domain so hence the familiarity with the technical jargon lol. I'll check my multimeters over the weekend - will it have on it 1khz in writing? How easily can it be identified if the multimeter is Khz compatible?
Small Update: Just threw on some White Angel Eyes and I'm totally chuffed! I used to think yellow rings were awsome.. yes, probably during day since they're more visible, but since I do little daytime driving, Ithought why not switch to these '1 LED per side' bulbs which I recently bought off the forum and love the look! May decide to get the '2 LEDs per side' in due course.. not my exterior is all white bright in the night
I took a pic but the Rings can't really be seen using my iPhone so will get a better pic up soon.