The countdown timer plug is suitable for a square European-style box and leaves a large space for the thread. There is no expandable clip on the back to fix the European square box. Make sure your embedded box matches our time switch. 60-Minute Countdown:The shortest time set is 1 minutes and longest time set is 60 minutes, timing is highly accurate.. AC 220V, 50Hz, Max power 2200W, Max current 10A. The countdown timer plug socket adopts high-quality plastic shell and high-conductivity copper inner material, which has excellent performance and durability. There are many small plastic gears inside the timer. The twist timer is very easy to install with wire connection type, it has a common wall socket panel, also convenient to replace. Large time scale is for setting time quickly and reading time clearly, and the led indicator light could remind you whether your electrical equipment is on working. The countdown timer switch can be widely used to control water pump and home appliances, such as water dispenser, water heaters, air conditioners, electric fan, warm fan, rice cookers, aquarium, router, phone charger, electric bicycle etc.