I replaced a 1-gang 2-way dimmer switch. The existing switch had 2 wires going into L1 and two into L2. Picture attached - note there are 4 red wires, 2 in each terminal.
I wired it in the same way for the new dimmer switch, and it does work.
But I’m wondering why there are two wires going into each terminal and whether this is actually safe?
I wired it in the same way for the new dimmer switch, and it does work.
But I’m wondering why there are two wires going into each terminal and whether this is actually safe?