shopping for led bulbs? take a few tips from some home-testing.
I have been at home for the last 18 months The test is designed to replace LED bulbs that we all know and love for residential lighting-the 60-, 75-and 100- Watt incandescent lamps that are no longer manufactured. The good news here is that, especially for homeowners who have not yet accepted the new lighting technology, the replacement led called A19s and A21s in the lighting industry is just getting better and better. ( A19 is the lighting industry\'s designation of the shape and size of the iconic 60-, 75-and 100- Incandescent lamps in Watt. The LED 60-and 75- The Watt equivalent is the size of the A19, while the A21 is a larger 100- LED bulb equivalent to Watt. ) When I first tested the A19 LED and A21 LED bulbs in the fall of 2012, I immediately noticed that the color of the lamps produced by the bulbs varies from manufacturer to manufacturer, although the wattage and color temperature are the same. The color of the lamp is also different from the incandescent lamp they intend to replace. Today, the difference between the three brands I recently tested at home --the 75-and 100- Watt LED equivalents for Cree, Philips and Sylvania- The difference between these bulbs and incandescent lamps is very small. Actually, that means you can mix the brand. When you put any of these two manufacturers in 75-or 100- A watt-equivalent LED bulb with the same color temperature in the table lamp on the side of the sofa or double bed, only exceptionally sharp people will notice that they are not exactly the same. I also found that 100- Watt LED equivalent with a brightness of 60- Watt equivalent LEDs for good reading. So for a lot of readers who asked me 150 There is no watt equivalent LED available for reading yet, please try one of them. Since the launch of the first A19 LED in 2010, the improvement rate of LED bulbs has been dazzling compared to old incandescent lamps, and they have hardly changed in the past 50 years of more than 100 years. Better for consumers, their prices have fallen sharply as the quality of LED bulbs increases. The first 60- Philips\'s watt-equivalent LEDs cost $40 per bulb. Six generations four years later, Philips\'s 60- Home Depot has a watt equivalent of $12 and its SlimStyle 60- Watt LED equivalent products that look like mini Ping Pong rackets are also available at Home Depot for only $9. According to similar time and price lines, 60-of Sylvania- Watt is equivalent to LED, which is now priced at $ Month in good looking. Corey only sells led for one year; its 60- Watt LED is priced at $8 at Home Depot. The 75-and 100- Later, more sophisticated watt-equivalent LEDs were introduced, and for each brand, prices have fallen by about 25 to 30% over the past year. Currently, Home Depot in Cree 75- Watt is $16 for LED and $20 for Philips. Cree’s 100- Watt is $20 and Philips is $22. Laurel discount 75-Sylvania- Watt-equivalent LED for $23, for 100- The equivalent of $28 Watt. What else does A19 and A21 LEDs happen? At this critical moment in the development of the LED bulb industry, brands are important. With old incandescent lamps, all parts are easy to make and cheap, shoppers can get the same result from any bulb. But this is not the case with LED bulbs. LEDs are difficult and expensive to make, and it is very important who makes them. Cree, Philips, and Sylvania all have their own products, so each company is able to implement strict quality control to produce the pleasant and consistent results I have seen in the home test. To reduce costs, the X brand may outsource its led and allow for a reduction in quality standards. The light produced by their bulbs may not be the same as the light produced by the brand name I tested. In other words, you can\'t mix the Brand X bulb with the name yetbrand ones. Shoppers do not need to have a lot of technical information before buying LED bulbs, but there is an important difference between LED and incandescent lamps, and each user must understand: the color temperature of light. Because all incandescent lamps have the same color temperature. Kelvin scale is 2,700 degrees This is never a problem. With the A19 and A21 bulbs, there are three color temperatures- 2,700 K, warmish yellow, most similar to the light of incandescent lamps; 3,000 K, whiter, designed to mimic halogen lamps; 5,000 K, which is blue, is usually called \"daylight\" and usually costs more. The front of the package may or may not notice the color temperature, but it can always be found in the \"lighting facts\" box on the back. The difference in the temperature of the LED bulb Kelvin is very obvious. Although you can mix the same wattage of the three brands I tested ( All 2,700 K) You can\'t mix Kelvin temperatures. If you put a 75 Watt equivalent, 5,000 K \"daylight\" LED light on one side of the sofa and 75- Watt equivalent, there are 2,700 K \"soft white\" LED in the light on the other side, you will definitely see the difference, you may not like it. GE is launching the third generation A19 and A21 LED bulbs. Its 40-and 60- Watt-equivalent LEDs debuted earlier this month and will be available nationwide at Wal-Mart By the end of June, Wal-Mart and Sam\'s Club. GE’s 75-and 100- Watt equivalent LEDs will debut in early July and will be launched similarly across Wal-Mart By the end of August, Wal-Mart and Sam\'s Club. Catherine salante holds a degree in architecture from Harvard University. She is a native Washington native who grew up in Fairfield County and now lives in Ann Arbor, Michigan. If you have questions or column ideas, you can contact her at salanthough watch @ gmail. com or www. Katherinesalant. com .