Automatic headlamp is very useful for miners as it eliminate the need to manually switch the headlamp ON and OFF while entering into the mines where light is [[wysiwyg_imageupload::]]not sufficient. The circuit described below works as a human eye to outside light levels and independently turns on and off the lights when needed .It hence offers both safety and convenience.  This circuit is very helpful when you are entering into a tunnel at twilight or sunlight even in foggy and rainy condition. For example when you enter into a dark tunnel you will not have to search for headlight switch it will automatically turn on after sensing the poor quality of light and when you come out from tunnel it will turn off automatically.The headlamp circuit is based on NE555, which is widely known to generate accurate timing pulses. Being a multivibrator IC, NE555 works in monostable and astable mode.