[methods of use] Power off, power cut off. The product and the lamp are linked together by a timer, and the automatic switch of the lamp is realized with CO2, which is more convenient and labor saving! [connection mode] For example, the "free CO2" generator, the electromagnetic valve only need to be installed in the middle position of the trachea (recommendations placed on the adjustment of the valve and refinement between CO2 through direct control), airway closure, safety, it is suggested that high strength pipe, such as Albert transparent high thickness and high trachea. Quality regulating valve [scope] Almost all CO2 systems that use endotracheal ventilation are applicable! Especially suitable for "worry free CO2" and other DIY low pressure carbon dioxide system. If used for high pressure ordinary CO2 steel cylinder system, to ensure the use of reliability, be sure to use high strength of the trachea, and ensure that the stability of the tube fixed at one end of the cylinder, in case of high pressure lead to fall off. [performance characteristics] Using the nut lock system design to effectively lock CO2 trachea, to prevent accidental release. The solenoid valve is low temperature solenoid valve, stable, durable, easy to install. power line 2*0.5mm2 (power line length of 1.4 meters with a long plug), "anti shock" plug, everywhere for your safety considerations. Plug: EU Plug Color: Black Voltage: 220V Quantity: 1 Pc No retail package Package includes: 1 Pc x Magnetic Solenoid Valve Regulator Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.