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  • Margaret Rosemeyer

LED Light Bulbs

Updated: Mar 2

All Bulbs Are Not the Same

Pick your LED light bulbs carefully, as you will be living with them for a while. An LED bulb that’s turned on for three hours per day will last an average of 12 to 20 years.

LED LIGHT BULB TECHNOLOGY

Light bulbs have undergone quite a transformation in the past 20 years. Just a decade ago, most people were still using energy-hogging incandescent bulbs. These days, the benefits of switching to LED light bulbs are clear. For only a little greater upfront cost, you’ll receive significant reductions in your electric bill with LED bulbs, and you’ll need to change your light bulbs far less often.

If you are considering making the switch to LED light bulbs, the sheer number of products on the market can feel overwhelming, though. You’ll need to consider the watts, lumens, shape, and price to find the best LED light bulbs for your home.

LED, short for light-emitting diode, is a relatively new type of light bulb technology that delivers greater longevity and lower power usage than other light bulbs. LED light bulbs emit light when an electrical current passes through them. This differs from compact fluorescent light (CFL) technology, wherein mercury and argon gasses in the light bulb emit light when an electrical current passes through.

With a traditional incandescent light bulb, electrical power heats a filament inside the bulb to generate light. Energy is wasted with this style of light bulb through the generation of heat.

Color rendering index for LED lights - CRI

When switching to LED lighting, often only brightness and color temperature are taken into account. The color rendering index is not very tangible for many people and is therefore hardly noticed, but very important. The CRI value is another important parameter for good lighting quality, especially in the home. Also according to lighting regulatory guidelines a CRI of at least 80 is prescribed for the lighting in the living area. For outdoor and industrial applications, at least CRI 65 is required.

The color rendering of Ra 80 LED lamps is basically not bad. In direct comparison, however, the color rendering of a Ra 90 or even Ra 95 lamp appears much more natural. We prefer using 90+ CRI bulbs on projects.



Conclusion

Now you know what the color rendering index or CRI value means and it's importantance. With this information you can compare the naturalness of the color rendering of different light sources. We hope this information will help you choose the best bulb for your home or office. Look for the CRI rating on the light bulb package.







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