Can anyone help? I am replacing a 1 gang light switch with a newer light switch, the old light switch had 3 holes for the wires, one which says common. The new light switch has 4 holes L1 L1 L2 L2. Which holes do I attach the red and blue?
Likely L1 and L2 it would seem you have a double pole replacement which is no problem you just use one half.
Switches come as:- On/Off, Two Way, Intermediate, Double pole. It could be either of the last two but it will still do the job. There does not seem to be a standard marking make to make some label it Com others L1 which means the remaining can be L1 and L2 or L2 and L3 so I just use my meter.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!