That is GREAT info, Dogfish!! Do you think I can get away with running the underground wire, then terminating it with a plug in the garage? That way I can plug into an existing grounded circuit (GFCI or whatever). This will run off an existing underutilized circuit in my house. I can run a bright light for the garden using your suggestions. Then I can install a switched outlet at the chicken coop that I can use for a heated waterer (in the winter) and a night time light. Does that seem right to you?