Features 1.Intelligent and digital led(light-emitting ) timer 2.1~8 channels, programmable and arbitrary combination and arbitrary output 3.Memory storage (10years) / mechanical life 4.Panel mounting 5.Delay time unit:0.1s/1s/1min(option) 6.Power supply (220v ac 50/60hz) 7.Input:transistor 8.100 groups of programme/time periods