article written for examiner.com
The incandescent light bulb is slowly being phased out of existence. The Better Use of Light Bulbs Act (BULB) was established to adopt more energy efficient standards. It is expected to save families and businesses billions of dollars each year in energy costs while also greatly reducing carbon pollution. While there are many other alternatives, incandescent bulbs have been favored because of the quality of light they emit. The problem with incandescent bulbs is that nearly 90% of the energy used to illuminate them is emitted as heat rather than light, thus being an excessive waste of energy. The alternatives are essentially: halogen, fluorescent, CFL (compact fluorescent light), and LED (light emitting diode) all of which have some drawbacks and limitations.
Blake Wexler, owner of the lighting store Illumination in Sherman Oaks, CA explained, “the issues consumers need to take into account are color quality, brightness, dimming capability and cost.”
Color quality is looked at in terms of temperature and color rendering. Incandescent lights are the warmest artificial light source next to candlelight because they emit light in the yellow and red tones of the spectrum. CFLS are coming closer in matching the warmth of the incandescent bulb and last 13 times longer. But until technology catches up, most CFLS don’t work with standard dimmers.
Color rendering describes how a light source affects the color of the objects it is illuminating. Blake recommends halogen and LED because they emit more of a crisp white light that enhances the color of objects and artwork, are perfect for task related activities, and can be easily dimmed. LED lights are much more costly at the outset, but a bulb can last up to 45,000 hours, about 20 years, ten times longer than a CFL.
There are a lot of alternatives to incandescent light bulbs and the color spectrum is definitely warming. Start by changing out a few light bulbs in your home, you may like what you see. The result will not only save you money and time, but you will be taking a step toward helping our planet.
Light bulb labels
- Wattage = the amount of electrical power used
- Lumens = the brightness/ amount of light a bulb emits
- -the more lumens, the brighter the light source
- CCT = Correlated Color Temperature
- -measures the warm/cool appearance of light
- -the warmer the light, the lower the CCT
- CRI = Color Rendering Index
- -the higher the number, the truer the color from 0-100
- Halogen = an incandescent lamp with a tungsten filament
- -last 3X longer than normal incandescent bulbs, but can also can get extremely hot
- LED = light emitting diode
- CFL = compact fluorescent light
- – use 75-80% less energy than incandescent
- Mercury = while there is only a small amount used in CFL bulbs,
- -It is recommended that they be recycled
Illumination Lighting and Design 13606 Ventura Blvd., Sherman Oaks, CA 91423 818-986-1383