The invention relates to an LED tube
system for driving at least one LED
assembly comprising: an LED tube housing for containing the at least one LED
assembly, two pairs of mains input terminals (A, B) provided at ends of the LED tube housing for receiving a mains supply
voltage (Vmns) and for supplying the mains supply
voltage (Vmns) to an internal part of the LED tube
system for driving the at least one LED
assembly, and further comprising a switching circuit being electrically connected with all mains input terminals (A, B, C, D) and being arranged for electrically connecting the pairs of mains input terminals together in a first state (2 / ON) and electrically separating the pairs in a second state (1 / OFF) of the switching circuit. The switching circuit being further arranged for providing a
coupling capacitor (C10, C11) between the first pair and the second pair of input terminals in the first state (2 / ON) and removing the
coupling capacitor (C10, C11) in the second state (1 / OFF) of the switching circuit. Due to the switching circuit the LED tube
system in accordance with the invention can be used in lighting fixtures for parallel fluorescent tubes as well as in lighting fixtures for serial fluorescent tubes. The invention further relates to safety devices for the LED tube system.