If you've elected to have electric brakes installed on your trailer, you would indeed need 2 things to get them working properly; - A Brake Controller (**This is installed into the tow vehicle**) (***This is not something we do. You will need to speak with a brake specialist***) - A 7-blade Tow Connector. (***This is required to send power to the brakes and the reverse lights. Speak with your mechanic about installing a 7-blade tow connection if you do not currently have one and would like electric brakes on your trailer. It is required for the brakes to work.***)