... the use of electric devices products,to control the electric valve opening and closing.Specification1,Operating ... .2,Control power, BFA-1 1.1Kw BFA-2 1.1Kw-4 Kw.3,Environment Temperature, - ... led is lit, live remote control switch point to the remote control, remote control indicator lights .4,Hand wheel ... the table shows 100%. 7,On-site remote control switch to spot, spot light, short circuit, no. ...