Abstract: An energy-saving light marking device with low power consumption including a head transformer (10) where the primary winding (12) is powered by an alternating current source and several marking lamps in series (14-1 to 14-3) connected to the terminals of the secondary winding (13) of the head transformer, each of the marking lamps being a fluorescent lamp (16-1 to 16-3) powered by the secondary winding of a second transformer (18-1 to 18-3), the primary windings of all the secondary transformers of the marking lamps being connected in series between the terminals of the head transformer's secondary winding (13). The starting of each of the fluorescent lamps (16-1 to 16-3) is provided by the voltage surge generated at the terminals of the secondary winding of the secondary transformers (18-1 to 18-3) when the primary winding of the secondary transformers is powered while the lamps are not yet started.

Abstract: A airport runway lighting system, including a power source (10) supplying a constant current to a primary circuit (12) and several marking lights (14-1 to 14-6) each being connected to the primary circuit by a current transformer (16-1 to 16-6), the secondary winding of which supplies the lamp current. At least several adjacent transformers form a multiple assembly without a connection cable. Each transformer features a built-in male connector and a female plug or two built-in female plugs. The transformers are stacked to form the multiple assembly, the male connector of one of the transformers being inserted into the female plug of the immediately adjacent transformer, the male connector of the first transformer and the female plug of the last transformer being connected in series to the primary circuit.