Grumpy_Mike:
No it doesn’t. There is no voltage regulation when the load resistance is too high to get the required current, just the voltage, minus drops, of the supply voltage. You can’t say there is any voltage regulation going on. Not in the sense that the word regulation is normally used.
From the datasheet of one of the Mean Well devices:
HLG-60H series is a 60WAC/DCLED driver featuring the dual mode constant voltage and constant current output.
How is it constant voltage if it isn't regulated?