The digital electronic timer switch is designed to automatically turn on/off various electrical appliances based on the setting time, saving energy and prolonging the service life of electrical appliance. Plug and play, very easy to use. Features: Environmentally friendly PC flame retardant material with strong durability, safe and secure to use. Large LCD display for easy and clear reading. Designed to automatically turn on/off various electrical appliances based on the setting time, saving energy and prolonging the service life of electrical appliance. Time setting includes minute, hour and week setting, and the minimum setup time is 1 minute. Support 20 groups of ON/OFF setting programs, countdown time setting, summer time setting and random function. Plug and play, very easy to use. Built-in rechargeable-battery for backup the memory when power failure, more convenient to use. Widely used for street lights, neon signs, advertising signs lights, home appliances, industrial electrical equipment, etc. Specifications: Material: PC Plug Type: 3 Types (Optional) Installation: Plug-in Type Output Control: Timer/Manual Control Timer Accuracy: ±1 sec/day, at 20℃ Voltage : 240V~  50Hz Output: Max 13(2)A, 3000W B-attery: Built-in 1 * 40mAh Ni-MH Rechargeable-battery B-attery Standby Time: 120 Days Operating Temperature: 0℃ to +55℃ Item Size: approx. 115 * 60 * 33mm / 4.53 * 2.36 * 1.30in Package Size: approx. 190 * 100 * 90mm / 7.48 * 3.94 * 3.54in Package Weight: approx. 177g / 6.24ounce Note: There are different plug specifications to choose from. Please choose the suitable plug to meet your needs. Package List: 1 * Timer Switch 1 * User Manual(English) 1 * Timer Switch 1 * User Manual(English)