EF series flasher relays are designed to produce impulses at the adjusted time periods.
Utilization and Operation Principle
When operating voltage is applied, OUT LED on the device illuminates, the relay turns ON and remains ON for the
duration of ton time (500 ms). The relay turns OFF at the end of the ton time and it turns ON at the end of the adjusted toff
time. The function works in this cycle until the supply voltage is interrupted.