LED Lighting and the Environment

For years now, environmental agencies have bolstered the replacement of the traditional incandescent lightbulb with LED lightbulbs in the interest of energy efficiency. LEDs light television screens, traffic signals, digital clocks, and more; they are multipurpose and come in various colors—and most importantly, LED light can lower electricity bills. LEDs have been modified to emit various shades of light, from cool blue to the warm incandescent glow most of us are familiar with. But despite their energy efficiency and versatility, many homeowners resist LEDs for various reasons, one of them being an unwarranted loyalty to the wasteful incandescent lightbulb.

The incandescent lightbulb, invented by Thomas Edison in 1879, generates light through the electrical heating of tungsten filaments inside the bulb. However, less than 10% of energy emitted from the bulb is light energy—the remaining energy is emitted as heat, as you have probably felt when touching a lit incandescent bulb or sitting near one. With less than 10% of energy fulfilling the bulb’s purpose of providing light and a short 1,000 hour life expectancy, it is difficult to justify the cost and value of incandescent bulbs: why purchase and use bulbs that waste energy, generate heat, and fail to perform to their full potential?

The easy solution to this problem is LEDs. These powerful bulbs emit light through the movement of electrons in a semiconductor material, thus maximizing the energy output that powers their astounding 20,000 hour life expectancy. This long life expectancy translates to about two decades of regular use, yet LEDs only use a fraction of the wattage required to power incandescent bulbs. Since LEDs use significantly less energy and are replaced less often than incandescent bulbs, they reduces the negative impacts of manufacturing, packing, and shipping on the environment. Also, LEDs emit less heat, thus reducing cooling costs and amounting to substantial energy savings.

In wasting energy, incandescent lightbulbs waste your money. Keep your house cool and your electric bill low by making the switch to LEDs.

Categories: LED Lighting