"Ian Waddell" wrote
| I'm trying to fit a new light switch (2-way, controlling 2 lights). There
| are 2x common 2x L1 and 2x L2 connectors on the new switch.
| I wired it yesterday and wired it identically to the old switch (which had
| the same connector labellings). However, the downstairs light now comes
on
| when the switch is in the "OFF" position, and turns off when it's in the
| "ON" position - and no the switch isn't upside down.
| What can I do to remedy this?

Operate the *other* switch controlling that light once.

Owain