What are LED vs incandescent lights?

LED lights use significantly less energy than incandescent lights.  In fact, LEDs use about 75% less energy, which can lead to significant cost savings over time.   For example a 12 watt LED light will produce a comparable amount of light as a 50 watt incandescent bulb.  

The main difference between LED and incandescent lights is in how they generate light. An incandescent light bulb produces light by using electricity to heat up a wire filament until it becomes hot enough to glow and emit light. An LED, on the other hand, generates light using a semiconductor that emits light when an electric current is applied to it. LEDs are more efficient, last longer, and produce less heat than incandescent bulbs.