With the OSBee are now all essential products of American OpenSprinkler-Shops available in Europe
The OSBee is the little brother of OpenSprinkler, it can control up to 3 9x pulse solenoid valves (latch/self-holding) and only with a 5V power supply.
This is made possible by an integrated booster, which, like its big brother, boosts the voltage.
The OSBee has WiFi and an OLED display and can be controlled via the web interface.
More details on the OSBee page