I want to know the answer to the following question:
What happens to the energy that an incandescent bulb does not convert into light?
All the background I'm provided with is that "Incandescent bulbs are much less efficient than most other types of electric lighting; incandescent bulbs convert less than 5% of the energy they use into visible light, with standard light bulbs averaging about 2.2%.". Is that enough to answer the question?