The higher the CRI rating, the better its color rendering ability. The color quality of light is rated as the color rendering index (CRI). CRI describes the ability of a lamp to render the “true” color of object as seen by natural outdoor sunlight. A CRI of 100 is a perfect match to natural daylight. Good lamps are rated around CRI 95, a close
According to the United States Department of Energy, useful life (or rated life) is “often described by the number of operating hours until the LED luminaire is emitting 70 percent of its initial light output.”. It is through this definition that we find the L70 rating. Any light fixture—LED or otherwise—will slowly but surely degrade
The 4-inch sloped gimbals can be used for 5º to 55º ceiling slopes, and the 6-inch for 10º to 50º, respectively. They are air-tight, IC-rated for direct contact with insulation, and suitable for damp or wet locations. A high CRI (color rendering index) of 90+ provides true color rendering in the area of illumination.
Due to the lack of LED manufacturing standards and a still-young technology, the CRI value of LEDs can range between less than 70 and over 90. This is why it is important to be able to make the distinction between a good quality LED bulb and a bad one. Good color rendering in LED lamps depends on a variety of factors, but by and large, the key
After further testing, we’ve added the Koncept Z-Bar Mini Desk Lamp, the Gantri Gallery Task Light, and the Schoolhouse Joe Task Lamp to our list of recommended lamps. We also added the IKEA
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cri rating for led lights
