The invention provides an LED lighting tube (100), a lighting system (200; 300; 400; 500), and a use of the LED lighting tube (100). The LED lighting tube (100) comprises a first circuit (10) configured as a short-circuit for high frequencies; a second circuit (20) configured as a short-circuit for low frequencies; a control circuit (30) connected between the first circuit (10) and the second circuit (20); wherein the control circuit (30) is connected to the second circuit (20) by a relay (40) controllable by the control circuit (30) and by a capacitance (42); and a light engine (50) connected between the first circuit (10) and the control circuit (30) .