Pig Heat bulb shine fitilar zafi na infrared da ake amfani da ita don kiwon alade, ciki har da R40 alade zafi kwan fitila, PAR38 alade zafi kwan fitila, BR38 alade zafi kwan fitila, da dai sauransu. zafi kwan fitila daga ruwa. kwan fitila mai zafi na alade hujja ce ta fantsama, ba hujjar ruwa ba, ruwa da yawa zai lalata kwan fitilar alade.