Features: 1.Potentiometer can be adjusted for different time ranges,with 8 time ranges selected shortest 0.1s most up to 1 hour. 2.5V delay turn on or delay off module. 3.Protection against power reversal protection diode, better protection module. 4.Can be accessed by a large current load (250V AC 10A or 30V DC 10A). 5.With delay adjustment potentiometer clockwise adjustment time longer. Specification: Electrical parameter: Input Voltage: 5V Quiescent Dissipation: 4.8mA Maximum Power Consumption: 70mA Relay Load Capacity: 250V 10A AC (2500W ideal power AC) 30V 10A DC (300W ideal power DC) Size: 56.5*29.5*18.5mm Package includes: 1 x 5V Delay Relay Turn on/ Turn off Module Note: Delay time range selection method, put S1, S2, S4 switch to different position, the potentiometer can adjust different time ranges Potentiometer can be adjusted for different time ranges,with 8 time ranges selected shortest 0.1s most up to 1 hour. 5V delay turn on or delay off module. Protection against power reversal protection diode, better protection module. Can be accessed by a large current load (250V AC 10A or 30V DC 10A). With delay adjustment potentiometer clockwise adjustment time longer.