iJust2 vs Atlantis atomizers. Same specs, big difference?

[Visionairy]

Not sure if this is the best section to ask this but I figured some of you would have experience with these two. My first sub-ohm setup is a iJust 2. I just switched out the atomizer for the first time and the store was out of the eleaf ones so I picked up an Aspire Atlantis 5 pack. They, in this device, are horrible. It feels like I just lost 80% of the power or my battery's nearly dead. I plan on switching back to eleaf but does anyone know WHY these aren't working so well?


Edit:
Duh, they're single coils...nvm

 

[Dlmdavid]

Even at the same resistance, the Atlantis coils require more power than the ijust coils due to the wire size/surface area. If you're using the ijust 2 battery and not a variable wattage device capable of putting out at least 50 watts you're not gonna get a good vape, however if you're looking to upgrade, getting a good VW mod and an Atlantis tank you'll find those coils perform a lot better than the ijust, at least my opinion and I own both tanks

 

[botibill]

I have the Ijust2 tank and I use the Herakles coils in it and they work great even at around 28 to 32 watts. I hate the IJust2 coils, last batch of them I bought 4 out of 5 of them were DOA.