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Mike, Master Electrician
Category: Electrical
Satisfied Customers: 1425
Experience:  Licensed Master Electrician - OnQ Certified Data Voice Audio Video Installer
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I have to replace an outside two gang light switch,

Customer Question

Customer: Hi, I have to replace an outside two gang light switch, unfortunately the old switch fell apart so I cannot copy, I have a red, blue, yellow coming in and know I have to link some of the wires, the switch is marked L1 L2 Com, there are two blocks/switches marked the same, heeelp!
JA: Thanks. Can you give me any more details about your issue?
Customer: Yes, what goes where?
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Submitted: 1 year ago.
Category: Electrical
Expert:  AssuredElectrical replied 1 year ago.

Welcome. My name is ***** ***** would be glad to assist.

Is this 2 gang, 2 different switches that operate 2 different lights?

Or a single switch in a 2 gang box?

Only 3 wires total in the box, correct?

Do you have a 2 lead voltage tester?

Let me know and we can continue,


Customer: replied 1 year ago.
Hi, it's one box which operates two lights on two rocker switches, no I don't have a meter
Expert:  AssuredElectrical replied 1 year ago.

Ok, thanks.

Since no tester available,

Can you check the 2 lights and confirm the wire color connection on the LIVE wire to see what color it connects to from the house wiring at the light fitting or junction?

That will let us know which wire is power at the switches.