General description Quiet and safe, this solenoid valve for aquarium CO2 systems features a wide voltage input of 100-240V and a DC 12V output. It is an upgraded noiseless version designed to ensure the health of your aquatic plants while being energy-efficient. The valve can be automatically controlled using a timer, allowing it to connect with your aquarium lighting system to cut off CO2 supply based on light levels. Technical specifications Output Voltage: DC 12V Power Cord Length: 90 cm Thread Connection: M10 x 1 Male Thread Temperature Design: Operates below 30 °C Compatibility and accessories Connects to M10 x 1 male thread or fine adjustment valve Compatible with 4 pipes of 6mm or bubble counter Installation Easy to install according to user needs Stable control of output time Usage Automatic on/off operation when used with a timer Helps maintain healthy aquatic plants