Not a bad price for those, though it's a lot more than I've paid for any of mine so far. But how do they handle low-watt vaping? I never go over about 10w.
Lately I've been experimenting with rda's in the 18 to 22 watt range but before that I used it on my Aspire nautilus Mini at 10 watts, which is about 4.3 volts with the 1.8 ohm BVC coil. Worked great.