I use these on a Joye eGo-C Twist 1000mah. I found that the lower-resistance ones (1.8 ohm?) burn too hot (burnt taste too) at even a very low voltage (3.2 ?). So, I've got ten Kanger T2's and love the system, using these 2.4’s. In my opinion, it is important to note that there are two versions of the 2.4 ohm coils that I've come across. The first ones I got (the originals that came on the T2's and the first replacement packs I ordered), had very short wicks. When I say short, we're talking about 3/16" sticking out of each side. The last pack that I ordered though, TDC sent me these (new?) ones that have a lot longer wick. The long wicks hang half the way down the coil's main tube (about 1/2"). So, it would make sense (and it also seems from experience as well), that the juice will absorb into the wick quicker, and keeps more juice available to the coil, without having to turn the unit upside down or lay it on its side all the time (to make sure the wick is always supplied). Not sure if all the wicks on this model will come long-style from here forward or not. Guess it couldn't hurt to ask (specify) for that style when you order them (comments section?). And another benefit of these is that they can survive an overheating. With regular atomizers, once you burn ‘em, you can’t get rid of that burnt taste unless you boil them. With these, just back off the voltage, take a few primer vapes, and viola!...clean tasting vapes again! Anyway, great buy! (in my opinion).