GU5.3 LED readings

Trying to work out what the readings mean with GU5.3 socket and attached lamps.
Image descriptions going from right to left on that album:
Both leads connected to wires feeding into LED, AC mode, 0.104v
Both leads connected to wires feeding into LED, DC mode, 0.1mv
First single lead connected to wire feeding into LED, AC mode, 1.916v
Second single lead connected to wire feeding into LED, AC mode, 0.351v
How the leads were attached, not ideal but the best I'm able to do with what I have.
The transformer powering the LED.

6 images