Safe Material -- The digital time switch is made of plastic, non-toxic and odorless, which is safe for home use and can be used repeatedly and durable for long time use. Energy Saving -- The timer automatically turns on and off lamps, Christmas lights, humidifiers and other appliances to save energy and streamline your daily routines. Battery Backup -- With the built-in battery backup, the unit retains the programming even in a power outage and saves you the trouble of having to reprogram. Easy to Operate -- Coming with a large LCD display and a convenient manual override switch that allows you to skip the programs if your schedule changes. Widely Application -- The timer is accurate with industrial grade chip and is suitable for household appliance, advertising board, road lamp, neon light and so on. Specifications Material: Plastic Voltage: 220V Size: approx. 7.1*4.3*7.1cm / 2.79*1.69*2.79in Weight: approx. 168g / 5.92oz Package List 1 x Timer 1 x User Manual