I have a home wiring project that I need help with. Actually I need
to find a device that can control a light, using power from another
light socket, and still letting a light be in that socket.

using electricity to control electricity - sounds like a task for
a relay.

Ok. I will explain.

I have a garage door opener with a light in it. I have 2 lights
outside my garage. The builder only installed 1 switch to these
lights, so the first thing is to put another switch in an easier
location to access. I can figure out the 2 way switch.

. . . . . . .
lamp in . . --- mains powered relay
---------+-----~~~3||| . try an electrical
opener (X) . 3||| . wholesaler
---------+-----___3||| . - a place that supplies
. | . electricians
+----------_| -----------+
| . ~- . |
| . . . . . . . |
| |
| ____________ |
L--------+-___ \____--+-----+----+
\____________ (X) (X)
N---------------------------------------+----+
2-way switch setup outdoor lammps

in this way the the outside lamps will light when the opener light is on
or when the manual 2-way switch is on.


you'll need to open the opener and connect wires to the back of the lamp
socket and run them out of the opener and to the relay. these wires won't
carry a high current so lighting cable is fine.



Bye.
Jasen