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The difference between watts and lumens

Consumers entering their local store in pursuit of a new light bulb could get confused over the variety of new terms being used to describe bulb types today. Consumers traditionally went by wattage to determine which bulb was preferable. However, this may no longer be the case.

Watts are a measure of energy used. In contrast, lumens are the measure of light brightness. The more lumens, the brighter the light the bulb will produce. LEDs produce the same amount of light brightness (lumens) as a traditional bulb, while using significantly less energy (watts).

Investing in LED lighting can reduce energy costs and increase a room's brightness. LEDs can be an efficient lighting solution because a high percentage of the energy they use goes toward producing light. A light-emitting diode (LED) is a type of solid-state lighting (SSL) that emits visible light when an electric current passes through it.

In contrast, an incandescent bulb creates light by passing electricity through a filament until it becomes so hot that it glows. With CFL bulbs, an electric current is driven through a tube of gases which produces light through a reaction. As a result, incandescent bulbs release 90 percent of their energy as heat, and CFLs almost 80 percent.

LED lights can waste less energy, measured by watts and produces greater brightness, measured by lumens.