You probably know incandescent light bulbs use several times the amount of energy that their LED counterparts do, but did you know that LED bulbs last up to 50 years? And that LED bulbs now come in a range of K ratings to ensure you get the right warmth of light in your home? 

LEDs have come a long way since they first hit the market. Pictured here is an edison-style LED bulb that uses far less electricity than its incandescent counterpart.