Design of LED circuit card for an off-road lamp

In this study a working lamp used on the working machines is designed by using the LED diodes instead of a halogen bulb. In the design, firstly a LED or a LED array and a proper driver circuit that can provide the required optical power are designed, and the working lamp developed are tested under various conditions. The luminous output values of the designed LED working lamp are compared with those of a commercial working lamp using a halogen bulb. It is evaluated that in automotive applications working lamps using LEDs could be successfully utilized depending on the optical efficacy of the LED used, the designs of the LED driver and the reflector.