I have four fans around the swimming pool. Two of them have transmiter and receiver for remote control, so I put the small pins in the same position in the transmiter and receiver but different in one fan to the other, both work good the light and the speed for the fan. The other two fans only have transmiter, so you need to push the off bottom to adjust the frecuncy for 5 secons. One work good but the other interfere with the other three. When I tur on the light all four lights came on, the same whit the fans. What I need to do.