When planning a new lighting layout for your home, it is important to
take many different factors into account. Besides simply how bright you
want the area to be lit, a savvy homeowner must include other factors
such as indoor/outdoor lighting, lumens, wattage, and even environmental
impact to choose the correct methods and techniques for your lighting
design.
When it comes down to it, it's all about the bulbs. The
bulbs that you choose for your lighting design will have an immense
impact on the sustainability and effectiveness of your lighting. There
are three major types of replacement light bulbs; incandescent,
fluorescent, and LED. The following is a quick rundown of how each bulb
type can be utilized to light your home.
Incandescent
Incandescent bulbs are what many people think of when they imagine a
basic, residential indoor lighting bulb. The light is generated from
heating a filament wire to high temperatures. Typically, incandescent
bulbs last fairly long, but the problem with them is that they are
costly in the long run. Incandescent bulbs require around 60 watts of
electricity to produce light, making it exceptionally expensive when
stretched over time. This is far more than any of the other modern
options, although an incandescent bulb contains no mercury and is RoHS
compliant.
Finally, the biggest downside to an incandescent
replacement light bulb is its carbon footprint. Incandescent bulbs
typically release around 150 pounds of CO2 into the atmosphere each
year, far more than any other bulb allows.
Fluorescent
A compact fluorescent lamp (CFL) is a great replacement light bulb
to phase out incandescent. Typically of a similar (or even cheaper)
price, CFLs are great for lighting systems that need to save cost
without a heavy investment. CFLs use about a quarter of the energy
consumed by an incandescent bulb in the long run, and are just as bright
for about a third of the cost.
This is not without some hazards
however. CFLs contain mercury, which is hazardous to the environment.
Though CFLs emit far less carbon dioxide each year compared to
incandescent, they must be disposed of responsibly through a special
program. Also, CFLs are more sensitive to temperature and weather
conditions. They become a heat and fire hazard if in extreme
temperatures for too long; so keep that in mind when considering outdoor
lighting or landscape lighting use.
LED
Light-emitting diodes (LED) are special bulbs that use a cluster of
smaller LED chips to emit waves and color characteristics. LED lighting
beats out the competition in just about every sense. They are highly
durable, require a tenth of the wattage that incandescent bulbs need,
and emit almost zero btu's of heat while they work. LED lights are
environmentally sound, contain no mercury or other harmful materials,
and release only about 15 pounds of CO2 a year.
The only downside
of LED lights is that they are expensive at first. LED replacement
lights involve a considerable investment that essentially updates your
entire lighting system. Once the installations are implemented, however,
price drops to costing fractions of what other lighting systems cost in
energy usage, per year.
Saturday, October 6, 2012
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