Time to offer my amended review of the Smowell DPV-50 (a.k.a, "Welly" or "Smelly," depending on where one stands).
I've been using my blue Welly as part of my bedroom nightstand arsenal for some time now. Most of my favorite higher-wattage regulated boxes sit on my desk where I work (and chain-vape) all day---Cloupor Minis, iStick 50, Kanger KBOXs, iPV Mini and Mini 2s, loaded up with my chosen tanks, RTAs, and RDAs---so my bedside nightstand gets a somewhat more second-tier selection---iStick 20s and 30s mainly---which I vape before going to sleep.
Of those, the Welly has become my go-to box. With a drilled-out Kayfun (for better air flow) filled with my DIY version of GoodLifeVapor Deadly Sin, I find myself reaching for the Welly more often than my iSticks with their Erlkonigins, Nautilus, and GS-Air tanks. I like the Welly's shape and feel in my hand. I've grown quite fond of the deep blue color of the case, the finish of which is just crinkly enough to be non-slippery. Though less heavy than some of my other mods, the Welly feels no more "crushable" than my iSticks, in part perhaps because I USB-charge it and never take it apart to remove the 18650. Battery life has proven to be exactly as one would expect for a single 18650 IMR used at 20 watts. Since it gets only night-time duty, a recharge every 3-4 days is standard.
Performance has been quite good---flawless, really. No firing delay, with full, instant, and apparently accurate power (identical to my iStick 50 at the same power), and no misfires ever (something I can't say about my iStick 20s and 30s, which suffer the occasional mystery misfire). I don't run extremely low sub-ohm builds, so I can't say whether the Welly auto-reduces the power for a 0.2 ohm coil. For the moderate resistances (0.5-0.9 ohms) and wattages (generally no more than 40W, and mostly less than that) I use, the Welly performs perfectly. To be fair, I wouldn't run a cloud-chasing tank like an Arctic or Herakles with 0.2 ohm heads on the Welly, but I don't own either of those tanks, and I'm a flavor-chaser anyway, so it's a moot point. (I imagine that vapers who buy those very low sub-ohm tanks probably own 100-150 watt boxes, to get the max out of their fog-machine capabilities.)
All in all, the Smowell DPV-50 has won me over, and I now regard the $26-shipped I paid as money well spent. No, I wouldn't ante up $60 for it---unlike the Sigelei 100W Plus I recently ordered from Gearbest for that sale price---but, in my opinion, the Welly is a decent buy as a bargain box, especially given the additional 20 watts of headroom it provides over a 30-watt mod. The extra power comes in very handy for something like an Atlantis tank or many RDAs.
Paint on these is poorly applied and peels off early on. Wrap works wonders.
