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Old Cable Colours Pre 2004 In 2 Way Switching and a Feed (Supply) to a Switch for an Outside Light - YouTube
![home wiring help - replacing light switch with 4 wires (2 red/2 black) | Electricians Forums | Electrical Safety Advice | Talk Electrician Forum home wiring help - replacing light switch with 4 wires (2 red/2 black) | Electricians Forums | Electrical Safety Advice | Talk Electrician Forum](https://electricians.s3.eu-west-1.amazonaws.com/data/attachments/2/2548-59ad0adf8951d298c6b0e1b28da81010.jpg)
home wiring help - replacing light switch with 4 wires (2 red/2 black) | Electricians Forums | Electrical Safety Advice | Talk Electrician Forum
![wiring - What's going on with this lightswitch (two wires to bottom connect, not connected on top) - Home Improvement Stack Exchange wiring - What's going on with this lightswitch (two wires to bottom connect, not connected on top) - Home Improvement Stack Exchange](https://i.stack.imgur.com/6V3HP.png)
wiring - What's going on with this lightswitch (two wires to bottom connect, not connected on top) - Home Improvement Stack Exchange
How to replace an old (1980s) light switch that has 2 black wires and one red wire (plus ground) - Quora
![Replacing an light switch. Confused by the two black wires. Usually there are, black white and ground. Old switch has no ground new one does. : r/askanelectrician Replacing an light switch. Confused by the two black wires. Usually there are, black white and ground. Old switch has no ground new one does. : r/askanelectrician](https://i.redd.it/ln77na1jpgb71.jpg)
Replacing an light switch. Confused by the two black wires. Usually there are, black white and ground. Old switch has no ground new one does. : r/askanelectrician
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