The light from the moon is not as hot as the sun because the moon does not produce its own energy. Instead, the moon reflects sunlight. The sun is a very hot ball of gas that produces its own energy through nuclear fusion. The moon, on the other hand, is a solid object that does not produce any energy of its own.

Therefore, even though the moon does reflect some of the sunlight that hits it, the light that we see from the moon is much less intense than the light that we see from the sun. This is why the moon does not feel as hot as the sun, even though both objects are in the sky at the same time.