
How To Wire Low Voltage Deck Lights and Post Caps - Part 6 The Transformer - Attach one side of your 12-2 or 16-2 low voltage wire to one side of Transformer and the same with the other side. If you are using a Malibu Transformer one side goes in A and the other in B. Kichler Transformer - one side in Common and one side in proper voltage slot.