The G.R.I. Current Controller is an encapsulated circuit with connecting wires to AC power, a light fixture and door monitor switch. The device uses a Lithium battery to supply power to a microprocessor circuit that is safely isolated from the 120 volts AC. The low-level battery voltage is used as a control signal to the door monitor switch. This control signal through the door switch will then control the AC power to the light fixture. The G.R.I. Current Controller is designed to fit into an electrical junction box along with the connecting wires.