On face value the wiring is fine unless you know that twin goes to a switch by itself. So the missing cord grip is the only thing that is not right, subject to confirming the t + e is not your usual " switch wire".
On face value the wiring is fine unless you know that twin goes to a switch by itself. So the missing cord grip is the only thing that is not right, subject to confirming the t + e is not your usual " switch wire".