Anyone tried to use this in a mod?

[cnashx]

I'm looking to make a VV mod and this seems to have basically everything but a switch.
My main question is with this I'm assuming I would have to use two batteries? I was planning on using one 18650, but it seems like most of the VV circuits for DIY need batteries in series.

DC DC High Efficiency Variable Power Supply Kit with Voltage Display 2A Out | eBay

Thanks!

 

[bemorphy]

yes. need a big box though. Two 18650 work. At least on my test set up. Im waiting to find the right box to fit it all in. I bought a hammond aluminum box and it was not big enough so went without it. Will be showing it when it is decorated by an extremely good artist. It has a digi display two metal switches a vv board. Have fun.