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 0.5AAction time: less than equal 1.5SRally: greater than equal 150NWorking stroke: 45mm+/-5mm/1.8inch+/-0.2inchAmbient temperature: -40Celsius to 105Celsius/-104Fahrenheit to 221FahrenheitService life: greater than equal 50,000 cyclesWiredrawing length: 100cm/39.4inchRated 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.