Methods of installing and using a horticulture lighting controller having a substantially rectangular shaped housing with an in-operation removable front cover panel, the methods preferably comprising mounting the fully assembled lighting controller to a mounting surface without first having to remove any component of the controller, remove a front or outer cover of the controller, perform any wiring connections on a backside or backplane of the controller chassis, or pre-wire any connections whatsoever, and then removing the front cover panel to connect the controller to a power supply circuit.
