The surge protector's primary purpose is to manage unexpected spikes in current and voltage within acceptable limits to protect equipment and signal transmission. It also grounds strong lightning strike currents to prevent damage and ensure safe, stable operation.
Effective protection of HVAC equipment, simple wiring. The double green lights indicate more clearly.
When the L1/L2 light is on, it indicates that it is normal protection. If the L1/L2 light is off, the product needs to be replaced.