How to install a convenience switch for a light that also has an electrical outlet?

I have a light in my shed with a regular switch box. I want to change the switch with one that also has an electrical outlet. The problem is that it is old wiring, i.e, the wires are not white or black, so that old black covering on the wire. I have only 2 wires in the current box, and from the instruction that I found, to get a always hot outlet and regular switch, I need 4 wires (2 from the source, 2 going to the light). The %26quot;convenience switch%26quot; has 4 connectors of course, 2 for the switch and 2 for the outlet. How do I install this ? I do not mind if the outlet is control by the switch or if it is always hot, so the easiest way will do. I tried wire 1 in the copper connector of the switch, wire 2 in the copper connector of the outlet, and then connect both black screws (switch and outlet) together: I figure this would create a closed circuit when the switch is on, and this way both the light and outlet would work... it didn''t... Why ?How to install a convenience switch for a light that also has an electrical outlet?Only two wires at the switch means no neutral. How about changing the light fixture to one with an outlet on it. For the combo sw. you will need three wires preferable a forth(green or bare) for the ground (goes on the green screw). one hot from the supply, one neutral, one return to the light. The sw. should have a silver screw for the neutral(white), on the same side a brass screw for the return(red) and on the other side two brass screws with a brake off tab between them for the hot(black). If the tab is gone hook the hot to both screws.If you want the sw. to control the outlet, switch places with the red and black wiresHow to install a convenience switch for a light that also has an electrical outlet?Chances are the reason you have only two wires in the box, is because the whoever wired it has just ran a piece of 2 to use to break the hot side. (Bet their are 2 cables running into the light fixture), if this is the case a combo switch outlet won't work in that particular box, you'll need to get a neutral into the box.How to install a convenience switch for a light that also has an electrical outlet?The two wires in in your light switch box are the same wire. The white and black wire go from the power source up to the light fixture. The white wire is connected to the fixture and the black wire goes down to the switch and then back up to the fixture. So you probably only have the black wire in you box at the switch. You would need to run the white wire down from the fixture to make you outlet work.How to install a convenience switch for a light that also has an electrical outlet?The reason why you only have two wires in the box is because it is a switch leg. In other words, the power is up at the light and the two wires coming down are the hot in and out. That is what you are switching. You need a three wire down so you will have a neutral for your plug. You will have to either fish a new wire up or maybe fish a new 2 wire up from a more convenient location for the plug. Good luckHow to install a convenience switch for a light that also has an electrical outlet?you said only 2 wires in the current box ( switch box) ?that 2 wires only for hot you know? 1 coming to switch 1 comeout from switch to fixturelingh.I'm sure the source started at the linght ,for that you have to be wiring a new 2-w cable/wg from the fixturelight to the switch box and then connect H , N to outlet and G to the case so connect H down to the switch and then out to the lingh make sure the ringht connection please.How to install a convenience switch for a light that also has an electrical outlet?I only read answer #1 and he is correct. The switch is just breaking the hot wire between the source and light, which means that only the hot is going to the switch. You have to get a neutral from the fixture to the switch to get an outlet working in the same box as the switch. Good LuckHow to install a convenience switch for a light that also has an electrical outlet?if you only have 2 wires in the switch box, then that means the power was ran to the light. The hot runs down to the switch on the white wire and then back to the light on the black wire.....hopefully........meaning that you don't have a neutral at the switch......that's why the receptacle doesn't work. You need to find another power source for the receptacle that you want or you need to pull another romex down to the switch box to provide a hot and a neutral