Traffic Signal Voltage Selection: 12V, 24V, 110V or 220V?

Match traffic signal voltage to controller output, cable length, solar design, backup power and local supply.

Project review

Map the power path from supply to controller, cable, signal head and backup arrangement. All interfaces must use compatible rated voltage.

Buyer checklist

• Controller output and switching
• Cable length and voltage drop
• Solar batteries and charge controllers
• Terminals, protection and labels

Confirm the approved power configuration before shipment to reduce site rework.