IMG_4589_thumb.jpg?x22128' alt='Installing Light Switch Two Black Wires Which Is Hot' title='Installing Light Switch Two Black Wires Which Is Hot' />Installing 2 motion sensors together I bought 2 motion sensor lights today to replace some very old motion sensor lights on either side of my garage that never worked.I have no idea how to wire these together so that they will come on simultaneously. Matlab Free Download For Pc there. My end goal would be that any motion would trip both lights to come on at the same time, and both lights would be on throughout the night on the dusk til dawn feature.Both lights are identical motion sensor lights bought from home depot.The old lights were twin lights, with a motion sensor eye installed on top of the left side light.After expositing the left side, it had 2 black and 1 white wire inside the box.The right side exposed had 1 black and 1 white wire.ULsDD.png' alt='Installing Light Switch Two Black Wires Which Is Hot' title='Installing Light Switch Two Black Wires Which Is Hot' />I have no light switch to control these lights.So I guess there is continuous current which I like.I pulled off the old lights and cant get past the initial white to white and black to black.The motion lights have a black, white, and RED in each of them and ground.Does anyone know how to wire these togetherI put whitewhite, blackblack and blackred on the master side left side of garage.And I put blackblackred and whitewhite and also cut the whites that were merged together in the fixture by a clamp and wired them together to the white.So 3 whites together on the slave side right side of garage Im not sure if I was supposed to undo those merged whites in the slave side, but the instructions said to do so.I thought thats what it was saying.Very confusing and terrible instructions IMO.I will add that when I wired that mess together and flipped the breaker on, both lights came on together without motion.So I figured I did it all wrong because it seemed I bypassed the sensor function.I then unhooked them, capped them and here I am.Thanks in advance, Im terrible with electricity The red wire in the fixture was labelled not to use unless wiring the lights together which is my goalp.The hot wire in a 120volt residential AC circuit usually is coated with black insulation, while the return, or neutral, wire is white.A singlepole, singlethrow.