I found an iClear30S last week. It had been in hiding for a year, but had a new wrapped coil ready to use.
I must say, I've enjoyed it despite being hard to draw on compared to mini
nautilus.
So far, the highest I have got it (before the tell tale taste) is about 3.7v on the iStick and 4.3v on the Vamo.
Guessing 4.3v on the Vamo is a 'safer' read of the power it can handle (iStick has behaviour issues) and it jumps between about 2.1 and 2.3ohms, then my answer is.
Up to about 10w, probably favouring just under that (9w) depending on
juice.
