I'm fairly knowledgable on electrical, but I'm stumped. Can I or is it possible to hook up a lamp post and an outdoor outlet with 12/3 wire with 2 different power sources? Can I use a common neutral? I have an outlet outside my home. It is an existing outlet that we use during the holiday seasons with an on/off switch in the garage. We want to Install a lamp post out there cause it's a very dark area. The lamp post has a dusk/dawn sensor on it. I don't want to dig up the landscaping nor the block walkway in order to dig a new trench. There will be times we want to lamp post to be on and others we want it off when holiday lighting is installed on out front lawn. We already had someone fall so we want to install some lighting to prevent this from happening again. Hope someone can shed some light on my dilemma.