How energy-saving is LED lights?

If we want to know how energy-saving LED lights is, we need to understand the structure and working principle of LED lights. The important part of the LED lights is the semiconductor wafer, which is solid in nature. We called the semiconductor as Light Emitting Diode, abbreviation for LED. One side of the semiconductor wafer is negative electrode, and the other side is positive electrode. When electricity is passed through the semiconductor material, the wafer will begin to release energy in the form of visible light.

When compared with fluorescent lamps and incandescent light, LED lights have a very distinct advantage in energy-saving. Fluorescent lamps emit light by phosphorous powder, but 30% of the energy is consumed in the form of heat. While the incandescent lights emit light when electricity is passed through the filament, it uses a lot of energy to produce light, but 90% of the energy is wasted as heat. The LED lights typically use about 25%-80% less energy than traditional incandescent, saving more energy and the money.

LEDs emit light in a specific direction according to different need, which will reduce the need for reflectors and diffusers that can trap light. Different fixtures are equipped to prevent the light from reflecting into undesired directions and most of the light can be fully used. The features make the LED lights more efficient for many work lights and street lights. LED lights are available in the wide range of colors and light levels you've come to expect, you can decide the color of LED lights by controlling the size of the current, such as the red, green and blue, and the white light is typically used by a mix of red, green and blue LEDs.

As is all know, the lifespan of LED lights are more than 60000 hours, while incandescent lights last for 800 to 1500 hours, and fluorescent lights last up to 10000 hours. In addition to, the traditional fluorescent lights and incandescent lights are made of glass, which are easily broken and lower lifespan need for frequent replacement. According to a research, if 250000 street lights are replaced by LED lights in a city, the lighting switch will save $70000 and nearly 248000 kilowatt-hours a year in energy, and the replacement project is expected to save $14 million a year in energy and maintenance costs. From these data we can see, LED lights are extremely energy efficient and save a lot of economic cost. What’s more, LED lights are a great lighting option for those wishing to pay less initially for their needs, providing great performance, environmental protection, lower heat dissipation and the other features.

With the rapidly increasing need of LED market and advanced LED technology, LED lights are applied widely for commercial and industrial lighting, and it also has the potential to fundamentally change the future of lighting around the world. More and more customers and dealers are shifting toward LED lighting because of the lower power consumption and high light output, but the important reason is the energy-saving, which will help people save a lot of money in energy paying. At the same time, I hope that more and more people will replace traditional lights with LED lights, reducing the burden of energy.