A single-gang switch is a rocker switch that controls one branch. For example, there is a light in the bathroom, which is controlled by a switch. The simplest form of this switch is a single switch.
A double switch is a panel with two switch buttons that control two branches. For example, there is a light and an exhaust fan in the bathroom (same circuit). Controlled by two switch buttons on a panel, the simplest form of this switch is a double switch
How to use:
Pole: Single-Pole integral switch
Multi-gang integral switch YSR-9JD-3H
Rating: 15A/125VAC
Indicator Lamp: Neon/LED
Temperature: 85℃
Service Life: 10,000 times