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Understanding LED Lighting


Use this guide to help you understand the lighting facts on your new LED bulbs.

Lumens are a measurement of brightness.  Watts are the amount of energy required to power the light bulb.  Light Appearance is the color of the light.  Cooler light looks more like sunlight; warmer light is friendly and inviting.  Light Appearance is measured in Kelvin.

To learn more about where and how to use your new bulbs; refer to the frequently asked questions below:

While many LED bulbs are dimmable, they do not dim in the same way as incandescent bulbs. Because LEDs consume such a low wattage, many traditional dimmers do not function with LEDs and those that do may function in a different way than with high wattage incandescent bulbs. When using an LED in a dimmable application, you may experience:

  • A smaller dimming range. An incandescent bulb has a dimmable range of 100%; an LED’s range is between 70% and 90%.
  • The bulb may not shut off completely, even on the lowest dim setting. Because of the low wattage consumed by an LED, the bulb may stay illuminated when the dimmer is completely off.
  • Flickering. LEDs may flicker when dimmed because of the small fluctuations in power on the line.
  • No change in color. As an LED is dimmed, they do not shift color. Traditional incandescent bulbs offer a soft fiery glow when dimmed; an LED remains the same color, its brightness is simply reduced. If you plan to use LEDs in a dimmable application, you may want to install a dimmer specifically for use with LEDs.

If possible, replace all your incandescent bulbs LEDs or take a look around your home to determine which lights are on most often – those are the lights that would benefit most from making the change to LED.

  • Entryway light fixture
  • Table/Floor Lamp
  • Central ceiling fixture
  • Hall light
  • Sconce

CAN I USE an A-Type omnidirectional LED bulb IN MY CANNED LIGHTING?
Yes, however an LED Flood is designed for these applications. If you choose to use an A-Type bulb in a can fixture the life of the bulb may be shortened. Traditional cans are well insulated. An incandescent bulb emits heat from the bulb and out in to the living space; an LED emits heat from the back and up in to the insulated can, giving the heat nowhere to escape. This heat exposure can shorten the life of an LED bulb. If you are interested in using LEDs in your canned lighting, select LED flood lamps.One LED light bulb uses the same amount of energy as 18 incandescent light bulbs.

For more information on lighting your home

Please visit the following websites for useful, interactive information:
ENERGY STAR Choose a light guide
ENERGY STAR at home – a room by room guide to saving energy


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