1. Mechanical timer: This kind of timer usually adopts a mechanical design, and uses knobs, dials, etc. to set the timing time. It does not rely on electronic components, is stable and reliable, and is suitable for various environments.2. Multifunctional smart timer: In addition to the basic timing function, the multifunctional smart timer may also have other functions, such as cycle timing, time period control, cycle charging control, etc. The specific functions vary from product to product, and you can choose a suitable model according to your needs.3. Water pump control: The timer can be used to control the start and stop time of the water pump to realize the control of regular water supply or circulating water system. Users can set the timing start and stop time according to needs to meet different water source needs.4. Daily cycle charging timing: This timer can also be used to control daily cycle charging, such as charging control for solar systems. The user can set the timing start and stop time to realize the timing charging control of the battery or other charging equipment.