Dual Coil 510 Tank Cartomizer

[jamentertainment]

Has anyone tried these yet...from madvapes...mostly all great reviews,...should i get extras of 2ohm or 2.5 ohm carts if i want to use these at 4.5 or 5volts for a nice throat hit???

thanks
https://www.madvapes.com/Dual-Coil-510-Tank-Cartomizer_p_3324.html