I'm planning to install motion-detector lights on my house in my backyard. I presently have one electrical box on the middle of the face of my house in the back that runs inside to a switch. I'm just looking to run conduit from that box along the siding about 10-12 feet off the ground and install 4 new junction boxes along the way. Local code requires galvanized conduit. I know the junction boxes need to be the kind that seal against moisture. Do I just use regular galvanized fittings to connect the conduit to the boxes? Secondly, is there a certain type of wire I need to use? Thanks.

We're trying to install a motion sensor on our front outside lights. We want the sensor to cover the walkway and the driveway so it needs to go just before the second light out of three (fig. 1). [url]http://farm4.static.flickr.com/3426/3371638000_dc3f4d22b4_o.jpg[/url] (my apologies for the 3rd grade level drawing...) Usually you connect the sensor after the switch and before the first light, but to do this we would need to run 20+ feet of cable to still keep the motion sensor where we want it. If wired up the normal way while in between lights 1 and 2, then light 1 will be operated by the switch, and lights 2 and 3 will be motion activated (fig. 3). To avoid this, I thought of a way to wire light 1 so that all 3 would operate by the motion sensor (fig. 2), the problem is, and I'm completely clueless as to why, but the sensor operates light 1, and 2 and 3 do not work at all. I need to find a way to wire it so that all three lights are controlled by the sensor, which cannot be moved since it is already installed. Thanks...