It is a timer relay module with high precision, stable performance. Power-off delay disconnect module designed for delayed operation of cooling fans, exhaust fans, etc. Function: Output turns on when signal is present, and turns off after signal is removed. Fine workmanship and reliable performance. Long service life. Specification: Voltage: AC 100V-220V Power consumption: less than 1.0W (standby) Time range: 4 selectable ranges via switch First range: 0.2 seconds to 20 seconds, accuracy 0.1 seconds Second range: 0.2 seconds to 300 seconds (5 minutes), accuracy 0.3 seconds Third range: 0.2 seconds to 30 minutes, accuracy 1.8 seconds Fourth range: 0.2 seconds to 300 minutes (5 hours), accuracy 18 seconds Output: Output voltage matches input voltage, maximum load capacity 10A Lifetime: 100,000 operations Color: Green Material: Plastic Package Contents: 1 x Relay Module Note: Other items not included. Lighting and display differences may cause slight color variation between image and actual item. Measurement error allowed within +/- 1-3cm.