【Rechargeable Battery】Built-in 1.2V/40MA rechargeable battery, automatically save user programming information, don't worry power outage. It can be used repeatedly and for long time use. 【High Precision】The electric timer is accurate with industrial grade chip, high precision and strong anti-interference ability, to-the-minute setting accuracy, can be used on projects that need to be accurate. 【Wide Applications】Suitable for household appliance, advertising board, road lamp, neon light and so on. 【High Quality】The digital timer switch is made of plastic, safe and non-toxic, odorless and durable. 【Programmable Switch】Digital electronics general purpose time switch with daily and weekly programs, you can set it according to your needs.