Why is LED so energy efficient?
LED Panels are popular in many businesses, venues and churches for their ease of use, low maintenance, beautiful visuals and easy integration. Clients often wonder how much it will raise their energy bill though and are pleasantly surprised to hear that they’re quite energy efficient. But if they’re so powerful, how could they be so efficient at the same time?
A Brief History of Lighting
Taking a trip through time, many sources of light or displays dating back a few decades were generally inefficient. Particular offenders were things like neon lights, projectors and early track lighting.
Actually, early track lighting might have been the worst as they gave the impression of being efficient and several companies ended up rooting out their entire track lighting systems and having them redone, or replacing the fixtures at the least. On top of that, the bulbs were outrageously expensive and the lighting would alter the temperature inside the buildings a noticeable amount.
Then Came LED
Although LED has been around since 1962, when an employee of General Electric came across it, it has been perfected and changed form many times since then. The main reason for LED’s energy efficiency is that they don’t produce much heat. Older displays would almost burn to the touch and, as many of you remember, they could burn the displays themselves leaving brown marks.
The reason for the lack of heat is, well, very complex. Essentially, instead of using filament (the thing inside light bulbs that burns and gets hot), it creates light by emitting protons. If you want to dive down that rabbit hole, you can do some research on electroluminescence.