This solenoid valve is low temperature design, temperature below 30, low heat and low noise. 100-240V wide voltage input, DC 12V output, the solenoid valve is 12V upgraded version without noise. It is safe, leak-free and easy to install, automatically turns on and off when used with a timer.Besides, the timer can connect your aquarium lighting system, with it, better keep your healthy aquatic plants, more convenient and energy-saving.Features :Quiet and Safety: 100-240V wide voltage input, DC 12V output, the solenoid valve is an updated 12V noiseless version. High quality power cord (the total length of the power cord is 90cm), with "anti-shock" charger, safety and no safety hazard.Adjustable: Automatically turns on and off when used with a timer. With this CO2 solenoid valve, the timer can connect your aquarium lighting system and cut off the CO2 supply depending on the light. your aquatic plants keep healthy, more convenient and save energy.Suitable for: one end connected to M10*1 external thread or fine adjustment valve, the other end connected to 4*6mm tube or bubble counter (single head solenoid valve). Two tips connect 4*6mm tube or bubble counter (double head solenoid valve). anti-loss and good sealing. No leak.Durable and easy to control: Be made of aluminum alloy, strong and sturdy. Low temperature design, temperature below 30, low heat and low noise. According to the user's need to control the output time, convenient, stable and easy to install.Guarantee: Any problem please contact our store without hesitation. Honor to serve you!Specification:Name: solenoid valve Main color: silver, black Material: aluminum alloy Power: 1.6W Voltage: 100V-240V input, 12V stable low voltage output Optional type: single head/double head Single head: M10*1 external thread or fine-tuning valve/4*6mm tube or bubble counter Double head: tube of 4 * 6 mm or bubble counter 51 * 48mm power cord: 90cm Note:Only suitable for valve outlet pressures below 6 kg.Trim valve interface (if not M10*1 interface) can not be connected to single head, can only buy two head solenoid valve and 4*6mm air tube. If you have a small leak when it is off, please try to flip the inlet/outlet.When the solenoid valve is working, the surface temperature is a little high, the heat is a normal phenomenon. After connecting well please do not touch.Package Information:Package size: 13*8.4*4cm Package weight: single head: 154g; Double-head: 141g Gift box packaging Packing list:1 * solenoid valve 1 * sealing ring