12V Power-OFF Delay Relay Module Delay Circuit Module 1. Using advanced quality timing chip control and accurate timing performance is far better than the 555 chip 2. Has anti-film reverse protection diode, better protection module 3. Relay is turned on and off times individually adjustable potentiometer function 4. Can be accessed by a large current load (250V ac 10 A or 30V dc 10A) 5. Output relays have normally open, normally closed selection