In contrast, the standard three wires of the 200X series are configured as fellows black (fire-wire), red (control signal line), and white (center line). The 3-wire socket has a compact structure design, which is suitable for street lights and only needs ‘on-off’ lighting.
The 7-wire design is a multi-function reserved interface, which is widely used in intelligent lighting and complex dimming systems to ensure the separation of signals and power supply, and improving system stability.