Features: *Normally Open/Close Thermal Electric Actuator for Underfloor Heating Manifold *100% brand new and high quality *Controls water flow through an underfloor heating system *2-wire connection with one valve per loop *Unique quick lock snap action.Red spot indicator on top *Can be fixed easily to an adaptor ring Specifications: Color: White Type: Normally Open/Normally Close Material: Retardant PC Voltage: 230V 2W Power: 2VA Thrust: 110N Route: 3.5mm-4mm Time: 3-5Min Connecting Size: M30*1.5mm Environmental Temperature: -5~60 degree Celsius IP Rating: IP54 Size: 65 x 40 mm Package Contents: 1*Thermal Actuator Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.