Mechanical Time Switches Manual /Auto Control SUL181h AC220V 16A Presetting Circle Time With 24HoursMechanical Timer is suit for Water Heater, Water dispenser, Street lamp, Staircase lamp, Advertising lamp box, Breed aquatics, Irrigation, office power auto control, anywhere need time control in civilian, home or industrial, etc.It can set 48 programs to control ON or OFF of electric appliance in 24 hours.It can be programmed to avoid the of power, and distribute power in time limit to save energy.This timer is a kind of module for DIN guide rail, easy to installation in illumination box, and its so compact size with pretty form.Its time base component is adopt synch pulse motor and it is strong anti-jamming, small consume with performance stability.By manual or auto controlWorking voltage: 230V 45-60HzOutput: 250V 16ABuilt-in 500mAh lithium batteryReserve: 150hSetting times: 48 timesSwitch time unit: 30 minutesThe shortest switch time: 30 minutesDimensions: 11.0 cm x 5.3 cm x 6.8 cmcolour: White + blueMaterial: ABS+ electronic componentsPackage Contents:3 x Timer3 x English user manualOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.