MICRO SWITCH™ Toggle Switches: TL Series, 3 Pole Double Throw (3PDT), 3 Position, Special Circuitry (On - On - On), Potted 22 Gage Lead Wire Termination, Sealed Bushing, 28 Volt T-1 3/4 Incandescent Lamp Furnished In Lever Knob, Emits Red When Lamp Is Energized, 21.84 mm Black Knob Locking Lever (Locked In Three Positions), FAA-PMA Approved