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Thanks! What about the Kv does that need to be the same?

For example the power supply recommended is max output 40kv. If I got one that was say 5kv higher/lower would that be ok?

I recently bought an EFR F2 80w Laser tube for my 60w machine.

I am now looking for a power supply for it.

The laser spec is 28ma (Max) Start voltage 19kv
An EFR power supply to match is 500w...