How Many Low Voltage Lights On A Transformer March 5, 2019 How Many Lights Can I Connect To My Transformer?. To figure out how many lights you can power with a single transformer, look to the minimum and maximum wattage ratings. www.lightup.com 3 Way Switch DrawingBlack Dimmer Light SwitchCeiling Light Diagram2004 Ford Expedition Radio Wiring Diagram1995 Nissan Maxima Wiring Diagram7 Pin Trailer Wire HarnessHow To Install 7 Pin Trailer PlugSix Pin Trailer Plug Wiring