Light means everything for a high quality business video. The lens on your camera - whether it’s your smartphone camera or a professional-grade camera - is just like the lens of your eye. When it’s bright, you see better; when it’s dark, your eye struggles. Your camera lens will pick up on greater detail and give you a better image if you shoot in an area with great light.
If you don’t have the budget or space for professional lights, there are still some ways you can improve your light quality right now - without spending a single penny.