Pretty sure [this]http://www.amazon.com/tDCS-Basic-Kit-step-instructions/dp/B00LDO45H6/ref=sr_1_6?ie=UTF8&qid=1404036933&sr=8-6&keywords=tdcs+kit is the one I ordered, its super basic and has youtube video for putting it together. Im pretty sure it was like $20 or $30 and right now its $50. I don't know of any others but if you found one with a fuse that would even be better.