Normally open solenoid valve means that when the coil is de-energized, the solenoid valve is opened; when the coil is energized, the solenoid valve is closed.Working current: less than equal 05AAction time: less than equal 15S: greater than equal 150NWorking stroke: 45mm+/-5mm/18inch+/-02inchAmbient temperature: -40Celsius to 105Celsius/-104Fahrenheit to 221FahrenheitService life: greater than equal 50,000 cyclesWiredrawing length: 100cm/394inchRated voltage: DC 12Vcolour:BlackMaterial:plastic+metalPackage Contents:1 x Engine Stop SolenoidsOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.