author(s)
Shehzad Zareen, Hira Zareen, Hameed Ur Rehman, Gulfam Bibi, Muhammad Ayub Jadoon and Mujaddad-Ur Rehman

abstract
Incubator is an electric device which is use to give a maintained temperature and humidity along with aerations to hatch eggs. Incubator act as broody hens which sits on the eggs and provide its body heat for chick hatching. An incubator was designed with the 80-watt light bulb. Bulb was used as heat source and was installed inside the box in such a way that it was connected with the Digital Temperature controller and to the AC adapter. Hence three of the devices i.e. Digital Temperature Controller, Light Bulb and CPU fan were interconnected as per manufacturer’s protocol of Temperature Controller. Eggs started hatching on 21^st day. All the eggs were hatched out except 2 eggs of Partridge which were unfertilised. Hence hatching results was found 100% in light bulb. Light bulb emits heat energy if this energy, is controlled it is more than enough to incubate the eggs. Light has no apparent side effect on chick development during incubation.