GEREE On/Off Delay Relay Module 12V Relay 12V delay turn on or delay off module. With 8 time ranges selected shortest 0.1s most up to 1 hour. Protection against power reversal protection diode, better protection module. Can be accessed by a large current load (250V ac 10A or 30V dc 10A). Geree 12V Relay guarantee--30-Day Money Back Guarantee--12 Month Replacement Warranty--Lifetime Support Guarantee--Professional After-Sales Team to Make Things Right within 24hrs.