Lewmar's new style thruster controllers provide superior tactile control of single or dual thruster installations. The controllers can be fitted to all Lewmar TT thrusters fitted with a blue box and to the previous generation TT thrusters fitted with a black box using this controller converter. Only one legacy converter is required per thruster. Upgrade kit allows replacement of the previous generation controller with the new thrusters with black boxExisting boat wiring can be usedNeeds to be installed next to the controller