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 0.5A Action time: less than equal 1.5S : equal 150N Working stroke: 45mm+/-5mm/1.8inch+/-0.2inch Ambient temperature: -40Celsius to 105Celsius/-104Fahrenheit to 221Fahrenheit Service life: equal 50,000 cycles Wiredrawing length: 100cm/39.4inch Rated voltage: DC 12V colour:Black Material:plastic+metal Package Contents: 1 x Engine Stop Solenoids Only 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.