Specification: Programmable Digital Timer 1.3 Big button for easy operation 2.Large LCD display 3.24 hours and 7 days programming 4.8 ON/Off program , up to 128 program in a week 5.Accuracy: Less than 3 seconds in one day 6.Reset function 7.Real time display 8.Easy changeover for Summer time 9.Rechargable NI-MH battery used inside , its a free of harmful battery 10.Power supply: 220-240V/50HZ Max.3500W