This is a programmable countdown timer, the longest can be set to 60 minutes, the timing is very accurate. The large time scale can quickly set the time and the reading is clear. With high-quality plastic shell, internal high-conductivity copper material, this timer switch has excellent performance, environmental protection, safety, sturdiness and durability, and reliable use. This smart countdown timer is universal, wall-mounted and very convenient to install. And the timing range can be controlled by the switch button, which is very easy to adjust Rated voltage: AC 220V 50Hz .Maximum current: 15A The timer switch can be widely used to control water pumps and household appliances, such as water dispensers, water heaters, air conditioners, electric fans, heaters, routers, mobile phone chargers, electric bicycles, etc. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!