We are offering fan speed indicator. S321 + sw: (3 lights, 2 fan & 1 fan speed indicator + 3-pin switch & socket)
description
3 lights (l1, l2, l3) on/off control2 fans (f1, f2) on/off control with speed regulationreal time fan speed indicatorf2 can be used as light dimmerone 3 pin switch socket