Much of the time, buying LEDs online isn’t so much a walk in the park as it is an expedition through the jungle. There are numerous competing brands in a poorly standardized market, making it hard for customers to understand which to choose. To help clarify the situation, here are the main LED lighting properties to consider when comparing LED strip lights. Lumens The measure of lumens is the measure of how much “visible” light is emitted from a source. For LED strip lighting, the amount of lumens will tell you how much light will be produced. The lumen output from our LED strip lights is measured in both lumens per reel and lumens per foot. To find the total amount of lumens produced by your installation, multiply the lumens per foot by how many feet of lights you’ll be rolling out. The highest lumen output LED strip light we carry is the UltraBright™ Bright White Industrial Series strip, which emits a whooping 11,000 lumens per reel. Watts Check the wattage to find out how much energy the LED strip light you are considering will use. LEDs are a highly efficient form of lighting, but depending on the manufacturer, some chips will use less energy than others. To see how efficient any light is, divide the amount of lumens produced by the number of watts it requires (“lumens per watt”). All Flexfire LEDs strip lights are highly efficient, though our “cool” temperature (brighter) lights are generally the most efficient because they don’t require as much phosphor coating. Color Rendering Index (CRI) Not all light is made equally; some light renders color better than others. CRI, Color Rendering Index, measures how natural colors look under a light source when compared with sunlight. The index runs from 0-100, with...
Sistine Chapel LEDs: A Masterpiece Of Fine Art Lighting...
posted by Flexfire LEDs
The Sistine Chapel ceiling frescoes are the world’s most recognized works of art by High Renaissance artist Michelangelo. Epic in scope, the frescoes, which depict scenes from the Book of Genesis, have been described as “an artistic vision without precedent,” and “a veritable beacon to our art, of inestimable benefit to all painters, restoring light to a world that for centuries had been plunged into darkness.” While Michelangelo’s works may have lit the way for untold numbers of artists who followed, until recently, inefficient, lifeless, and heat-generating halogen lamps were being used to light his masterpiece. Recognizing the potential for improvement, multinational lighting manufacturer Osram teamed with universities and private institutes to install a new LED lighting system for the Vatican masterpiece. The EU and private funders helped fund the installation, which was designed to address the shortcomings of the previous lighting system Installed in the 1980s, the original halogen lamps failed to highlight the full scope of colors used in the piece, while converting only 10% of the energy used into light (the other 90% was lost to heat generation). Combined with this high heat output, an increasing number of yearly visitors meant rising temperature concerns, which could potentially damage the work itself. For this new installation, 7,000 low-heat LEDs were specially adjusted to create the most natural, homogenous fine art lighting possible. The hue of each LED was individually adjusted until the results were precisely matched to the color pigments used 500 years ago by Michelangelo in the different sections of the massive work of art. According to Mourad Boulouednine, Osram’s regional head of projects, the Renaissance pigments required a different color rendering index than the ones made available the eight standard testing colors. After performing an optimization process by analyzing light coming from a particular spot on the piece, the...
Why You Should Care About CRI...
posted by Flexfire LEDs
CRI, or Color Rendering Index, is the latest buzzword in consumer lighting circles. With the current phasing out of traditional incandescent bulbs, many consumers are scrambling to understand their remaining choices. Savvy lighting manufacturers understand this, and have invested a great deal in educating customers about things like color temperature, lumens, and now CRI. So how does CRI work? Basically, take a light bulb and shine it onto a few bright, colorful items. How natural do their colors look? Color Rendering Index is a mathematical measure of this, where a light source is tested and given a score from 0-100. Any light bulb, tube, or strip that measures greater than 90 is typically considered “High CRI”, and thus very effective at rendering natural-looking color at a given color temperature. As a point of reference, many of the fluorescent or other types of lighting that people consider “harsh” or “artificial” measure in the 50-70 CRI range. Take a look at the two photos above. In the first photo, under lights rated at CRI 57, the orange bell pepper has lost much of its natural color, appearing almost yellow. Similarly, the green apple, red bell pepper, and yellow marker appear dull and lifeless. In the second photo, under CRI 93 lighting, the colors are much more alive in comparison, down to the white board on which everything is placed. Testing for CRI requires special machinery designed specifically for this purpose. During this test, a lamp is shone onto eight different colors (or “R values”), termed R1 through R8. The lamp receives a score from 0-100 for each color, based on how natural the color is rendered in comparison with how the color looks under a “perfect” or “reference” light source at the same color temperature...
Flexfire LEDs Announces High CRI LED Strip Lights...
posted by Flexfire LEDs
In keeping with its commitment to providing innovative LED lighting solutions, California-based Flexfire LEDs has announced its new UL Listed UltraBright™ High CRI Series LED Strip Lights. Designed to meet today’s higher lighting quality standards, this new line measures >93 on the color rendering index, fortifying the company’s reputation for delivering cutting edge technology at consumer-friendly prices. CRI, or color rendering index, is the standard measure of a luminaire’s ability to accurately render a specific color spectrum in comparison with a perfect reference source at a given color temperature (i.e. daylight). Simply put, if you direct the light onto a particular object, how natural do its colors look? Testing for CRI is a complicated process, requiring specialized machinery designed specifically for this purpose. Lamps are tested in terms of how they render eight basic colors (or “R values”), termed R1 through R8. A score from 0-100 is given for each color, and these eight numbers are then averaged to determine the lamp’s overall CRI rating. Those measuring above 90 are generally considered highly effective at rendering natural color; for a practical understanding, many of the traditional fluorescent lights that people consider “harsh” or “artificial” measure in the 60-70 CRI range. LED lighting is the established industry leader in energy efficiency, and advanced technological development means LED products are now available at dramatically lower prices than even just a few years ago. This dynamic is driving a worldwide shift to LED lighting, one that is further accelerated by government regulations such as those found in California’s Title 24. Established by the State’s Energy Commission, Title 24 addresses a number of energy efficiency standards, particularly those having to do with lighting. To be classified as “High Efficacy” and thus qualify for utility rebates and other advantages,...