Invert the output voltage

Hello...i'd like to use a Shelly to order a watering valve. To open the valve I need to send a +9V impulsion, then, to close it requests a -9V impulsion (on the same valve inputs, but the tension is inverted).

Is that easly feasible?

Thanks to all 😃

Cheers

I would like to do it with a Shelly 1....caus' I still have one. But if I need to buy an other one, that's bo problem.

it's a 9V solenoid WP1-JTV from Rain Bird. It works with + or - 9V pulse to open or close.

When it receives no voltage, it keeps the previous state (open or closed)