What if both wires are black and one green
286889
They are both black, however one is ribbed and the other is not (The ribs can be pretty hard to notice. I believe if I am remembering correctly Ribbed goes to white and the smooth goes to your other black wire. (Green is ground) I hope this helps someone else since the original question was asked some time ago. (I had the same confusion at first but it does say this in the instructions that come with the wire kit. )
286890
It looks as though you got a device that went through QA only on paper. I personally would take a pic and send it off to the manufacturer.However, if you want to save a lot of time put a continuity test and just use it as it is. It's ac current so it really shouldn't matter.
286891
It's AC current. Green is ground. If no other markings on the blacks it doesn't matter.
396844
hook white to white and black or red to black or red wires in electrical box,and green to green if you have one this is your ground.you can hook black to red or red to black both are feeds.
1895463
it doesn't matter, there should be two wires (usually Green) the same color coming out of your amplifier (the siren module), you connect the black and white to those two cables.. there is not specific way to put them.
1572581
One leg= 1 black and 1 red wire for a single lightTwo leg= 2 separate blacks and 2 separate reds for two different lights on one harness
2157905
black wire is a ground.. common sense says black is ALMOST ALWAYS negative/ground.
2217468
There are two wires (red and black). Red is positive, center, and black is negative, outside.
777202
It is in the green when working properly. But if the wire is grounded by grass or tree limb it will go to red. Then you need to walk the fence and find the problem.
937034
Generally the black is hot and white is neutral with single phase av current. With two phase such as 220 v both phases are hot in reference to neutral so black goes to one phase and red to the other. Do not connect the current meter to voltage source, only to the supplied transformer. General answer is it should not matter but I would try to make black the hot lead.
950179
My guess is that the red and black wires are your "hot" wires and those are the ones the clamps go on. The white is neutral and the green is ground.
814267
The black wire is the hot wire and the white is the neutral.The green is the ground
245416
One wire goes to positive, but the other wire just needs to be grounded to your vehicle, not the negative wire, this should fix the problem.
1571839
The red and black bundled wires are 12 v + and ground. The green wire is the serial ground and only functions as a ground for the serial wires. Unless you're going to use the external serial function, there is no need to ground the green wire.
379780
Its has a black green and white wire you can hard wire it or put a pig tail plug in cord on it.
1470768
You should have a black and a red. That go's positive and negative. The other wire (yellow or red) should go to your switch.
1987106
Three wires rgb indicates red green blue. V indicates ground or negative. Use a dmx512. Use youtube for I structions
154594
Neutral and Line, at least that's how I interpreted it. When hooking up the power cord I went green wire to ground, white wire to N and black wire to L.
1249433
No, only use the red and black wire. tape up the end of the green wire so it will not be exposed.