I'm building a model traffic light with my Micrologix 1100 processor (1763L16BBB) and two of the lamps that are controlled by relay outputs are coming on and off as intended but the lamps that are being controlled by FET outputs are not coming on. Meanwhile, they are turning on and off appropriately on the LCD screen on the processor. I think the bulbs are not creating enough "load" to make the FET turn on and so I want to put some resistors across them. I'm yet to try anyway. What else may be the problem that is keeping the bulbs being controlled by FET outputs from coming on and off that I need to check or have to do in addition to adding the resistors? Thanks for any suggestions anyone is able to give.