What is the difference?
The main difference between the terms “light” and “lite” is in their application and environment.
Light can be defined in different ways; it may refer to illumination or weight or to lighting something. It is employed in both the written and spoken language.
On the other hand, “lite” is a branding term that is used specifically to describe a food item with lower calories or reduced fats and is not used other than in commercial parlance.