Here's a breakdown:

* Light: The visible light we see from the sun is a small portion of the electromagnetic spectrum. It's produced by nuclear fusion reactions happening in the sun's core. These reactions convert hydrogen into helium, releasing tremendous amounts of energy in the process. This energy travels outward through the sun and is emitted as light and other forms of radiation.

* Heat: The sun's energy, including light, is also emitted as heat. This is primarily infrared radiation, which is invisible to the human eye. It's the heat we feel when we stand in the sun.

In summary:

* The sun emits a broad spectrum of electromagnetic radiation, including visible light and infrared radiation (heat).

* The sun's energy is produced by nuclear fusion reactions in its core.

* This energy travels outward and is emitted as light and heat, reaching Earth and making life possible.