LEDs and CFLs use about 75 p.c less energy than normal incandescent bulbs, but that would not issue significantly if the lightbulbs are dim or give off a strange coloration. To locate CFLs and LEDs that outshine the rest, our professionals head straight to the integrating sphere in our lightbulb lab. Which is how we know that an EcoSmart LED from House Depot is the ideal substitution for a 60 -watt incandescent that we've tested.
We area one lightbulb at a time inside the major hollow sphere to decide the bulb's brightness whilst monitoring its strength use and deciding no matter if the light shade is heat or amazing. The sphere also shows us how properly a bulb reveals the colors of objects. "The integrating sphere stops light from other resources from interfering and captures all the light created from the bulb," states John Banta, an engineer for Client Reports. Set a different way, the integrating sphere is really great.
The sphere sends knowledge to our personal computers and the engineers evaluate it. In the meantime in a lab down the corridor racks and racks of CFLs and LEDs cycle on and off, and following three,000 hrs they are put back in the sphere to study how common use affects their overall performance. Then it really is on to more and a lot more testing as we work to discover out how LEDs, which have a incredibly long claimed lifestyle, accomplish at twelve,000 hours.
Our latest lightbulb Rankings are dependent on three,000 hours of screening and demonstrate that LEDs outshine CFLs. In truth, a sixty -watt substitute EcoSmart CFL from Property Depot scored the lowest of that team.
Some LEDs earned around excellent scores, but not all are very good and they can be expensive. The excellent news is LED rates are dropping. We just noticed a prime -scoring Philips 60 -watt alternative LED for $ fifteen at a nearby Household Depot. Which is $ ten much less than a month back. And our lightbulb checks demonstrate that there are lots of good, inexpensive CFLs to select from. Before you shop, verify our Ratings to locate the best bulbs for your sockets.
Via: How our high-tech lightbulb tests identify the best bulbs
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