Provari's won't even fire a sub ohm coil. Mechanicals don't have that protection, you are the protection as baditude said previously. 27 watts on mech is nothing, there's no wires, springs or circuit boards in the device to have fault out, the body of the device is the circuit. The spring in the switch doesn't carry any current, it's just there to make the switch release when you let go of it. Mechanicals and regulated devices are two entirely different experiences
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