Review on Yongnuo YN 622N TX I TTL Wireless Controller by Eric Schwalbe

Purchased with a pair of YN622N. Works with Nikon compatible TTL flashes. I was able to remotely control the power of not only the Nikon SB910 and SB600 but also the Neewer VK750II flashes. Make sure your flashes are set to TTL or you won't be able to remotely control flash output. You won't see the power change indicator on your flashes, but you can see the power increase and decrease as you turn on your flash. I've tried getting it to trigger other flashes with Yongnuo 605N transceivers but they won't pair. Maybe there's a way to link it, but so far the two systems aren't talking. Also, unlike Paul S. Buff's cyber syncronizers, the Sekonic L358 does not trigger.