![]() But also they create a problem when comparing colors of illuminated objects that may appear the same in one lighting condition but quite different in another. These variations in the shape of the LED light curves account for the ability to sharply cutoff energy output in the UV and IR areas. Although they can be "blended" to shape the visible light curves, they do not really appear exactly light a black body radiator even in the visible (to human eyes) part of the light energy spectrum. ![]() By customizing the doping of these semiconductors, engineers are now able to economically create light that simulates conditions that "appear" to be everything from warm (2800-3200 degrees K) to Bright White and Daylight (5000-6500 degree K). LEDs can have a widely different designed energy distribution output and (since the first Light Emitting Diodes were produced back in the 1950s) have evolved from sources in the IR range to red, green and later blue. ![]() It also is the reason that it appears reddish to yellowish compared to noon day sunlight, also known as D6500 Degrees K.(CIE) The tungsten source, accordingly, could be thought of as a heat source which produces a small amount of light for our eyes to use. Most of the energy produced is in the infrared part of the spectrum and accordingly more of its output doesn't produce useful light in our eyes' retinal sensitivity portion of the spectrum, basically between 400-700 nanometers of light. Nearly all of the responses to differences between LED vs tungsten lighting are focused on issues of life, efficiency, energy use, etc but ignore a very important characteristic of the light spectral energy distribution curves which are quite different in nature.Ī tungsten light bulb has an energy distribution output that is referred to as a black body radiation source not unlike the sun or a star. Knowing the differences between these products can make a big difference in efficiency, cost savings and maintenance for your company.Įditor's note: This is a sponsored blog post from Radwell International. While LED lighting has rapidly become the first choice for many applications, there are areas in which Tungsten lighting is still preferred. LED lighting is much more temperature friendly and does not product the heat that a tungsten system produces. Tungsten lighting produces a significant amount of heat. Temperature is another difference between the two lighting systems. This usually results in LED lighting systems that run much cooler than tungsten lighting systems. The difference in power consumption is also significantly less with LED lighting compared to tungsten lighting, since an efficient power supply is used to convert AC to the DC power utilized by the LEDs. LED lighting uses much less electrical energy to operate compared with tungsten lighting, which needs to keep a metal filament glowing. The first difference is energy consumption. There are distinct differences between the two types of lighting. Tungsten filament bulbs produce light by glowing when an AC or DC current is applied to them Traditional tungsten lighting utilizes a filament of tungsten as the light producing element. LEDs are semiconductor devices that produce light when DC current is applied across a semiconductor junction. LED lighting utilizes light emitting diodes or “LEDs” as the light-producing element. While they both produce light when power is applied to them, they are distinctly different in how they operate. The two main types of lighting discussed n in this article are LED lighting and tungsten lighting. It is important to weight the pros and cons before choosing a system that is best for your operation. Although it seems like a simple thing, choosing lighting for your environment is important for your operation.
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