It is a relay module with high precision, stable and reliable performance. Power off delay disconnect module, is special for delay of cooling fan, exhaust fan, etc. Function: Turn on the output when there is a signal, and turn off the output after the signal disappears. Fine workmanship and good performance. Long service life. Specification: Voltage: AC 100V-220V Power consumption: less than 1.0W (standby zero power consumption) Time range: (4 gears, by switch) : range 0.2-, accuracy: 0.1 seconds Second gear: range 0.2-300 seconds (5 minutes), accuracy: 0.3 seconds Third gear: range 0.2-30 minutes, accuracy: 1.8 seconds Fourth gears: range 0.2-300 minutes (5 hours), accuracy: 18 seconds Output: The output voltage is the same as the input voltage, and the maximum power supply capacity is 10A. : 100,000 movements used for exhaust fan Mr22 19 colour: green Material: plastic Package Contents: 1 x Relay Module Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.