Fotch, what version are you looking at? The V4's can handle a flash voltage up to 300V, according to the gadget infinity website. - http://www.gadgetinfinity.com/cactus...er-set-v4.html

I have to agree with Mike, Cactus triggers are well worth the money - granted they are not as sturdy as a pocket wizard, but geez, the savings is too hard to overlook(especially when you are only doing this for a hobby).