1. [Maintain Optimal Temperature] The intelligent controller carefully monitors and maintains the ideal temperature, creating a comfortable environment for your fish to swim.2. [Fast Electronic Cooling] Utilizing electronic cooling technology without the need for refrigerants, this system ensures rapid cooling to keep your water at the desired temperature.3. [Quiet Running] Running at a low noise grade of 30 to 35 decibels, this water chiller provides a tranquil and peaceful environment for both you and fish to enjoy.4. [Easy Temp Adjustment] Simple button design, easily adjust the temperature within the range of 10 to 40? (50 to 104?), allowing for accurate temperature control.5. [Great Heat Dissipation] The heat dissipation hole design significantly improves efficiency, ensuring for maintaining the best conditions in your aquarium.Spec:Item Type: Water ChillerMaterial: Alloy SteelTemperature Setting Range: 10-40?Suitable Water : 1-3LPMSuitable Hose: Inner Diameter 8mm HoseSuitable Head: Below 300cmSuitable Water : ?20LPower: 72WHow to Use:Take out the product, install it and you can use it.packing list:1 x Water Chiller1 x Power Cord1 x Power Adapter1 x Hose1 x 1 x User ManualNote:1. Please handle with care during transportation, installation, maintenance, etc.2. Keep a distance of at least 10cm between the machine and the surrounding space to facilitate airflow and heat dissipation.3. If you encounter insufficient pump , please try placing the water cooler below or parallel to the water . Once the water circulation returns to normal, you can put it back in its original position.