Up until a hundred and some years ago, humanity trudged through the dark. Before the invention of electricity and electric lightbulbs, light was typically provided either by the sun or flames (say torches or bonfires.) Folks at home might spend the whole night in darkness. These days, you can often conjure up light simply by flicking a switch. That said, not all modern lighting systems are created equal and some, like Kelvix lighting, are better than others.