Easy peasy
Advanced Member level 6
I doubt a typical LED driver could reach the striking voltage ( several kV - unless you touch the electrodes together and then unwind them a bit ) and then supply the 50A or so needed for a half decent arc...
Any current limited 3kW 50A power supply can be used to make a carbon arc - the lads at work have done this with pencils ... ( graphite "lead" ) they do tend to catch on fire quite quickly due to the wood tho' - welding goggles needed.
A very slight air flow past the arc ( usually vertically ) is helpful to carry away the gases and some heat ...
Any current limited 3kW 50A power supply can be used to make a carbon arc - the lads at work have done this with pencils ... ( graphite "lead" ) they do tend to catch on fire quite quickly due to the wood tho' - welding goggles needed.
A very slight air flow past the arc ( usually vertically ) is helpful to carry away the gases and some heat ...