Casual 2 Phase Light Switch
However some styles of single pole switches notably rocker style.
2 phase light switch. The single pole switch is the general purpose workhorse of switches. The black loop wire is connected to the other terminal and at the light to the hot terminal on the fixture. At the first light you connect the black and the white wires.
A characteristic feature of a single pole toggle switch is that it has on and off markings on the toggle. The red continues to the next light along with a white. Two for incoming hots and two for outgoing hots.
It is used to control a light receptacle or other device from a single location. At sw1 it is connected to one of the terminals. If you wanted to control the two lights separately from two different switches in the same box a three conductor cable with ground would need to be installed to the first light instead of a two conductor cable.
A double pole switch is what you need to control a 240 volt device because 240 volt circuits have two hot wires. The neutral from the source is connected directly to the neutral terminal on the light and the source hot is spliced with the white loop wire. Think op meant 2 phases in a 2 gang switch 1 gang is 2 way on 1 phase and the other gang is on a separate phase for another light.
This circuit is wired with a 2 wire cable running from the light to the switch location. The difference between a single and double pole switch is that the latter controls two circuits at the same time. It has four terminals.
1 2 werktage. The white wire is marked black on both ends to identify it as hot.