yeah 3000 degrees C hypertextbook.com yeah yeah "Temperature of an Incandescent Light Bulb" "Temperature of an Incandescent Light Bulb" yeah 3000 C (about 5000 F), causing the filament to glow 3000 degrees C http://hypertextbook.com/facts/1999/AlexanderEng.shtml 3000 C (about 5000 F), causing the filament to glow yeah