Trusted brand Led Driver gives much more current than on spec
Answer: test configuration error

Specs:  Output 0.7A at 9-30Vdc

Putting a current meter across the output is a short circuit with very little voltage drop. (Note fuse limit on DMM on + terminal )

You must have LEDs in series with meter such that LED voltage is between 9-30Vdc and the LEDs are thermally protected with adequate heatsinks.

The Req linear load would be 9V/0.7 to 30V/0.2 or 12.8 to 30.8 Ω.
You might try a Halogen lamp for a test load but R cold is 10% of Rated R when hot. V^2/W

added

Beware that ESD can easily be hundreds of voltages even though we think of kV when we say ESD. Yet LED's are only rated for -5V and -30Vdc or even a cable with sufficient capacitance and voltage can discharge to kill or wound them them.

I suspect you connected them backwards.