LED Light Bulb Facts

LED light bulbs seem like they’re new technology, but did you know LEDs were first discovered in the 1920’s? These great standard light bulb alternatives save a ton of energy, and have little impact on the environment.

LED (light emitting diodes) light bulbs have gotten a lot of good press recently, and rightfully so. If you compare the LED bulbs to traditional light bulbs, and even other energy saving light bulbs on the market today, LED lighting often comes out on top.

These energy saving light bulbs also have a very long life time. They can last around 11 years if continuously used. They typically are a little bit more expensive than other light bulb types, but if you consider how long they actually last, they may be a very wise investment.

Below we’ve posted an article with some helpful LED facts (click on it for more info):


Light Appearance

Continuing with our bulb education theme, we’d like to talk about the “Light Appearance” section that shows up on lighting facts labels.  Light appearance is another great light measurement tool you should use when picking out which light bulb is right for your fixture and room.

Light appearance is the color temperature that a bulb gives off.  The color temperature of a light bulb is measured in kelvins and the scale goes from 2700 kelvins to 6500 kelvins. If a light is measured at around 3500 kelvin it is considered to be neutral light. Lower numbers indicate a “warmer”, yellowish light and high numbers are “cooler” and more bluish.

The difference in the light given off between warm and cool light bulbs is pretty significant. Warmer light bulbs give a more yellow light, casting a glow on items around a room.  Cool light bulbs look a white, maybe even a little blue and bright.  A lamp shade or light fixtures whole appearance can be changed just from what bulb you choose to put behind it.  For example, a silk custom lamp shade can look completely different if bulb that is too cool or warm is used with it.

It is important to choose a bulb that suits the fixture, shade and room that it is being placed in. Ask a lighting expert to help you if you need help deciding if you want a warm, neutral or cool light bulb.

Light Appearance Scale
This is the measurement scale most lighting fact labels use to measure Light Appearance


Estimated Yearly Energy Use and Life

Continuing on with our bulb education theme, we wanted to explain what “Estimated Yearly Energy Use” means on a light bulb package.  It is one of the measurements, required by the FTC, on all light lighting labels.

Estimated Yearly Energy Use on the lighting label is a dollar figure that is calculated based off of 3 hours of use per day.  They use that along with an average cost of electricity per kilowatt hour to determine how much it will cost.  The number listed on the outside of the box isn’t exactly correct, because electricity rates depend on where you live, and sometimes the light may be used for longer or shorter periods of time.

For most customers, it really just depends on how much they plan on using this light bulb.  The “Life” of the bulb is a measurement, in years, that is also just based on a 3 hour a day usage.  Don’t let the number on the box fool you, use the 3 hour a day rule as a base and if you plan on using it more or less than than that, plan accordingly.

Lighting Facts
Image Via FTC

Our Harold’s Lighting stores in Seattle and Bellevue have many bulb styles and sizes to choose from.  Our expert lighting staff is ready to help you find the bulb that will work for your light fixture, Energy Cost and bulb Life needs.