I can't measure AC current. I have two DT838 digital multimeters that measure only DC. I had an idea to connect the light with a diode (or 4 diodes for full wave rectification) in series and then measure the current (and I will probably do that just for fun), but that would probably affect accuracy. Or maybe I could connect it with and incandescent light in series and then measure voltage on it's ends, or something like that??