Good price for a decent quality product. I found a DC adapter and I use it plugged in. I also used it with AA recharceables and it comes with an adaptar, which I suspect would allow the use of a Sony battery. However, I use it plugged in most of the time, in combination with other lights, for interviews. I'm not sure about the dimmer - I don't use it anyway, but it looks kind of sketchy.. Just because the dimmer doesn't work like it should, I'll give it only 4 stars.

It works as advertised! Longevity - not known - haven't used it that often!

good light at a good price. the dimmer does not seem to work properly, but I don't use it anyway.