I have a light switch I want to change as the other day when I turned it on it sparked. I have bought a 1 gang 1 way switch. My problem is I have two brown live wires and not sure what brown wire goes to "common" and which brown wire goes to "L". Does it matter? Both the blue (neutral) and the yellow and green wire (earth) are fine and inside the switch mounting and I don't need to do anything with them. In the switch that has blown one brown wire was in "L1" and the other brown wire was in the section with a symbol of a wave and arrow symbol. Thanks
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