their website says 100-240V AC
check out
http://media.hyperion.hk/dn/eos/
scroll down to the bottom and click the link for the manual
I have a 0610 and I love it, it is easy to use, works well, and can handle my 10,000mah batteries. Only thing to mention about the 0606 is that I think it can only handle 50Watts (~3.3 amp charge rate at 4S) which is why I went with the 0610.