need electricians assistance, GVRD [bby]

[Deaner]

There is nothing wrong with that, the question might be, what are you plugging in?

[Magma]

The MH probably draw to much amperage when you first turn them on, which cause the GFCI to pop just as if you had a short, water in it etc. It happens to me all the time when I use HOT5's on my GFCI plug.