Posted by Doug Root on September 17, 2015
As many of you now know, shopping for LED bulbs is much more difficult than looking for your traditional light bulbs. In the past we could just look for a 40, 60, 75 or 100 watt light bulb and be done. We can no longer use watts to define the light output. As LED light sources get more efficient the wattage consumed goes down while the lumen output goes up! Now, we have to pay attention to lumen outputs, lumens per watt, useful life ratings, L70 ratings, color temperature options and so on.
To make shopping for new LED technologies easier and more transparent the US Department of Energy introduced the Lighting Facts® program. The label is basically like a nutrition label for light bulbs. The label lets you know the most basic facts you need to know to make an informed decision on whether or not the LED bulb meets your needs.
Most LED's that come from reputable manufacturers have a LED Lighting Facts® Label. If they do not then they could be giving you erroneous information. So when shopping for products look for the label. AtlantaLightBulbs.com carries products from Philips, TCP & Halco Lighting Technologies. These manufacturers use the LED Lighting Facts® Label on a large portion of their product offering.
Below, we will go over the wording used on the labels and what it means to you. There are four versions of the LED Lighting Facts label.
Anatomy of the LED Lighting Facts® Label
Lumens per Watt/Efficacy
LED Lumen Maintenance
Color Rendering Index (CRI)
Correlated Color Temperature (CCT)
The above information was gathered from US DOE website: http://www.lightingfacts.com/Library/Content/Label