Bioluminescence - if it gives of visible light. However heat is also light and metabolism itself therefore gives off light, but you can not see it because it is infrared light.
Incandescent bulbs produce the most heat for a given amount of light; fluorescent lights produce much less heat, and LED produces the least.
A firework explosion gives off heat.
sun
No, endothermic reactions absorb heat. Exothermic gives off heat.
The photosphere gives off heat and visible light.
Yes . Its because light gives off heat .
lomentwist
LED lights
energy
jupiterer
light and heat energy
Energy
heat or exothermic energy
Planets dont give off light therefore all planets dont give off its own light
it gives off radiation
It is still active and has internal heat