LAMP APPARATUS FOR EXTENDING AMOUNT OF TIME USED

摘要

According to the present invention, the HID lamp is composed of a first lamp and a second lamp, and the second lamp is connected to the ballast by a second cable to which the impedance element is connected, so that the power induced from the ballast is controlled by the impedance value of the impedance element. The first lamp is turned on first, and when the first lamp reaches its end of life, the power source induced from the ballast overcomes the impedance value of the impedance element and turns on the second lamp. Even in the case of luminaires installed in high places such as lamps or crime prevention lamps, the lighting life can be extended to twice the life of the first lamp + the life of the second lamp. The present invention relates to a luminaire capable of extending the service time which can be switched on automatically without a device.;HID lamp, first lamp, second lamp, ballast, housing, first cable, second cable, impedance element, plug, socket