x2. .5 and .2 coils will need more wattage to function properly, as I've learned. Thats not to say that a 30w won't run a .5 because our kanger subvod's can run .5 coils.
What is key is that more/adjustable wattage gives you more flavor, and vapor production. Depending on your juice source, you'll find yourself hunting flavor in different ranges. The kanger subvods tap out at (iirc) 45w with a .5 coil. Same juice in a different tank with more wattage provided better flavor on a .5 coil.
Right now I'm running a few setups. I have a .2 kanthal in one triforce at 60-65w. A .14 ni200 coil in another triforce at 65w, and a .33 kanthal coil in my RBA running at 55w. All juices from the same source, 20pg 80vg 3nic.
Point being, experiences may vary. lol but for that tank I would suggest a regulated mod vs a battery type device. A good cheap one I could suggest would be a cuboid, you can get them for less than 40 bux. (but would be wise to get at least 4 batteries and a decent charger)
According to what I see in the specs, yes it'll work, but the 40w cap in my opinion would be pretty low. The downsides of one of those for me is the internal battery, so if the battery goes, the mod is bricked, unless you can find a way to replace the battery, and I'm not sure if they have countermeasures for that. I tend to prefer external batteries, that way if a battery goes south, I can just replace them. That being said, it is advised that if you get a 2 battery mod, you marry the batteries, always use the same 2 at a time, charge them together, use them together, not actually take them to the courthouse... lol
All that being said, I know that brand to be well spoken of, but I personally haven't laid hands on any. The pricepoint is pretty good compared to going the route of the cuboid which would be around (mod 40+2 batteries 13+ 2 bay charger 20) ~70bux.
Features and Specs:
510 Threaded
Dimensions: 3-1/16"L x 1-3/8"W x 7/8"D
Size: 36.2mm*22.3mm*77.3mm
Capacity: 2600mAh
Rated output wattage: 1-40W
Rated resistance range: 0.05-1ohm (TC mode), 0.15-3.5ohm (VW mode)
Temperature range: 100-315℃/200-600℉ (TC mode)
Clear OLED display
Accurate reading of resistance: The reading of resistance becomes more accurate with the number down to the second decimal point.
Stainless steel threads and spring connector
Micro USB Charging Port
You know it's time for a coil change when you notice a drastic change in flavor, less vapor, and a burnt cotton taste.
Many things will effect this, I'm killing coils every 3 days here lately, and I'm down to 2 reasons. Bum coils, or my juice source. I'm getting ready to re-order some coils and get juice from mt baker vs my local source and see if there is a difference...