BigPatents India

LED lamp circuitry that emulates an incandescent lamp's behaviour upon remote verification of the LED lamp. The LED lamp circuitry presents an input power switch circuit, a fuse blow-out circuit, a cold filament test circuit, a current detector circuit and a boost power stage circuit, permitting the use of LED lamps in applications, such as railway signal light applications, where there is a need for remote monitoring of the lamps, while keeping the advantageous features of lower power consumption and longer life. (FIG. - 2)