Please ask for advice before ordering.

These add on components require the SSi control box with EVC4 contact port. EVC4 Has its own 230/240v power supply so switches off the solenoid valve in the event of main power supply failure. The connector to the SSi PSU also closes off the solenoid valve in the event of a lamp failure

Can be used on other systems but both the EVC4 and Solenoid valve need to be purchased. Solenoid only works on power supply failure