LED light - 2 wire to 3 wire LED xfmr connection | Terry Aug 16, 2018LED lights will be connected in parallel to a dimmer switch - yes the leds are dimmable. The fan will be connected to a simple spst switch. My ignorance is how to connect the 2 wire + gnd house wiring to the 3 wire + gnd transformers contained within the leds. Smarthome Forum - Old House with 2-wire only However, my house is really old, and there are only 2 wires that connect to all the wall switches. There are no ground and no neutral wire. I have been searching for programmable switch that works with NO neutral wire for CFL, but there doesn't seem to be any. And I eventually stumbled onto this great forum and I started to read about home Related searches for house wiring led switches wiring electrical switches and lightswiring light switches wall switchwiring 2 switches to one lightwiring a light with two switches diagramwiring light switches in parallelwiring diagram one light and two switcheswiring light switches in serieshouse light switch wiring diagram