Making the move from incandescent bulbs to LED bulbs is a major way to save energy and money on your utility bills. It’s widely known that LEDs are better and work hard without using up a lot of energy but it’s not always understood why they’re better. If you’ve ever wondered about the why or looked for clarity on the different styles of LEDs out there and what all these fancy terms mean (lumens, Kelvin, A19 - oh my!), you’ve landed in the right place.
First and foremost, what are LEDs and how do they save? LED stands for Light Emitting Diode - the newest, most energy-efficient form of lighting. Unlike standard incandescent bulbs that use a large amount of energy to power (much of which is wasted as heat), LED bulbs require very little, converting 95% of their energy use into light.
Less energy use reduces the demand from power plants, decreases greenhouse gas emissions, and saves you money.
How to Choose the Right LED: 3 Considerations You Should Make
Due to new technology and great variety, shopping for LEDs online is different than shopping for standard bulbs in-store. How do you know which LED is right for you? Just like with standard bulbs, the same considerations apply - will it fit, will it be bright enough, and what will it look like when illuminated?
Ask Yourself 3 Questions
To select the right LEDs for your needs, ask yourself the following:
Bulb Styles and Bases: A Quick Rundown
The styles of light bulbs fall into a handful of broad categories, each of which has a letter value. For example, general use light bulbs are in the "A" category. Following each of these letters is a numeric value, representing the width of the light bulb in eighths of an inch. Therefore, an A19 is a general use light bulb that is 19 eighths of an inch wide. The higher the numeric value, the larger the diameter of the light bulb.
The base of a bulb refers to its connection to the lamp or fixture it fits inside of. The most common base is an E26 medium screw base.
Examples of Bulb Styles and Bases
*Most common bulb base in the U.S.
Lumens, a Measure of Brightness
It is a common misconception that watts = brightness, but it is in fact lumens that measure brightness. The higher the lumens value, the brighter the light. Here's some history.
In 2007 the Energy Independence and Security Act (EISA) included provisions to improve the efficiency of general use light bulbs by at least 25%. Pre-EISA, a 1,600 lumen general use incandescent lamp would typically consume 100 watts of electricity, but post-EISA a general use lamp could consume no more than 72 watts of electricity.
Kelvin, a Measure of Color
The correlated color temperature (CCT) is the color of a bulb, measured in degrees Kelvin. The lower the value, the "warmer" (more yellow) the color of the light. The higher the value, the "cooler" (bluer) the light. The most common color temperature is 2,700 degrees Kelvin (soft white).
We are very excited to be able to combine the convenience of online shopping with the importance of energy and water efficiency. Customers can have a personalized shopping experience and know they are purchasing high-end products that will help them save energy and water.Steve Z. General Manager
We had just moved to our new home and really needed to shore up the heating system, figure out how we could afford new windows (they were original), and find out why our heat never stayed in the house. We worked with MassSave and EFI to assess our home, qualify for, and fulfill a heat loan. We were up and running with a new heating system, with a zero interest heat loan in about a week! This couldn't have been easier, and, to be honest, more needed. Thank you EFI and MassSave!Ryan D, Mass Save Marketplace Customer
We’re excited to partner with EFI! Using our existing programs, customers have saved millions of dollars in energy costs over the years. The PPL Marketplace certainly will add to those savings.Mary Ann M. Manager of PPL’s residential EE programs
We worked with EFI to create a product marketplace to offer our customer base an easy to use shopping portal. Our goal this year was to move 500K bulbs across all of our jurisdictions, and the EFI's marketplace and marketing expertise ensured that that number was hit by Q3. These guys know what they are doing, its just that simple.Ron S. Manager – Planning and Evaluation
I am always very happy with your service. I am proud that you want to help us save energy - I bought a ton of light bulbs. Thank you for being one of the few services I use that I can feel good about!Tracey Kitchens - Marketplace Customer
Reach your customers & Exceed your goalsContact EFI