1. Using semiconductor refrigeration, it is environmentally friendly and pollution-free, which is of great help. Silent and noise-free, the low-profile design is ideal for fish tanks and supports cooling and heating3. Adopt digital display and advanced microcomputer intelligent temperature control technology 4. It has a Celsius and Fahrenheit temperature switching function, which is very practical5. This product is suitable for small refrigeration and heating, aquaculture, and aquariums. Project type: electronic chiller. Usage: Plumbing equipment. Model: STC-200 35L. Rated voltage: DC12V: 70W. Circulating water pump flow: 1-3L/min. Scope of application: water pump vertical Cooling water with lift below three meters: 20L Applicable water pipe: inner diameter 8 mm Product size (approximately) 115 x 110 x 190mm / 4.5 x 4.3 x 7.5inch water pipe connection operating procedure: Divide 2 meters into two pipes (the length can be customized according to your own needs) (Confirm use), put pipe buckles on the pipes, connect the inlet and outlet pipes, fix the buckles tightly, connect to the pump, and use it with direct power supply. 1. Turn on the power, water starts to circulate, and observe whether there is any water leakage. 2. Connect the power cord of the water chiller, plug in the plug, press the switch to turn on the power, and the display will show the water temperature in the fish tank. Installation and use: Keep a distance of more than 20cm between the machine and the surrounding space to facilitate heat flow. Plug type: Plug, suitable for Canada, India, Mexico, Thailand, Taiwan, United States, Philippines, etc. Color: Gray Material: ABS+Metal Packaging Contents: 1 x Electronic Water Cooler Set 1 x Plug Only the above packaging content is included, other products are not included. Note: Lighting and different monitors may cause the color of the item in the picture to be slightly different from the actual item. The measurement allowance is +/-1-3cm. ",