I like them both, but I put one of my Hohm Wreckers up in the classies after getting the Jaybo for $$ reasons (actually the one in the background). I still have a Hohm Wrecker that I will keep, too good of a device to completely let go because it does pre-heat.
Anyway, the Jaybo is super small, super heavy, but is pretty darn cool. I can't say how much more battery life this will give me in the high wattage & temps that I run, but I suspect it will be better. It's my 1st "dna" device, but I plan to use it in simple ways.
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