It's an out-of-the-box KangerTech Subvod-C and Subvod. It looks like the battery is 1300mAH, output voltage 3.7v. There's no way to adjust the power. It says it has an SSOCC 0.5 ohm coil. Just the basic set-up, no changes to it.
If it helps any, I'm currently vaping a mix of two flavors from VaporHQ - American Red, which is 12mg nicotine, 50vg/50pg, and Blast Radius, which is also 12mg nicotine, 50vg/pg.
Edit: I've also vaped a 4mg nicotine 90vg/10pg juice from my local store which I've found to be way too sweet for me. The same thing occurs while vaping this juice.