What is the difference between daytime lighting and heat lighting?

Question

What is the difference between daytime lighting and heat lighting?

Answer 1

OOOOOOOOOOOOOHHHH!! You said LIGHTNING!!!!

Answer 2

The difference is the amount of ambient light or the difference in lighting between day and night.

If a lightning strike is a sufficient distance from the observer, sound from the strike will not be heard. These silent bolts are called heat lightning. Lightning bolts produce thunder, but the thunder sound does not travel all the way to the observer if the observer is too far away.

The above type of lightning also happens in the daytime.  However, since the lightning is so far away and the sky is already bright (daytime), the lightning is not seen.