Is LED CFL Light Bulb popular
in Toronto Etobicoke Mississauga & GTA
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|Electric light bulbs are the step in the human quest to create some light where and when the regular sunlight is insufficient. We learned how to compose light out of the different colours spectrum.
Starting around 1880, the first commercial applications of the incandescent light bulbs were created and began to compete with candle light, gas lamps and kerosene lamps. After over a 130 years of development the incandescent light bulb is on the edge of being obsolete and is heading towards extinction. The first countries to ban the incandescent light bulbs were Brazil and Venezuela in 2009. Several EU countries are actually in the process of banning sales of incandescent bulbs. The US introduced a similar ban in 2014. Actually, Canada is lagging behind and only bulbs 40 Watts or more are banned.
The main drawbacks of an average incandescent bulb are:
-low efficiency, only 2% of energy is converted to light, the rest goes to heat
-only up to 15 lumens per watt are produced
-short 1,000 hour life cycle.
In the year 1939 a new competitor appeared. The tubular fluorescent light bulb was created and in 1976 the spiral CFL (Compact Fluorescent Light) was invented. It is estimated that 50-70% of today's light bulb production are CFLs. Parameters of bulbs and light produced by them improved greatly. Today an average of CFLs turn 7-8% of electrical energy into light with the rest going into heat, produces less than 60 lumens per Watt and lives for 10,000 hours.
Problems associated with CFL are:
-contains mercury and requires a special waste disposal program
-has a visible starting and heat up time
-emits a harmful ultraviolet, UVA & UVC
-problematic start in cold weather
-may flicker when used with dimmers
Beware of cheap light fixtures with CFL only GU24 sockets - GU24 bulbs are expensive and have a very limited variety of replacements produced for the US CFL market only!
A few years ago, around 2006, a new LED light bulb came to the North American household. It has a very distinct look because the light emitted from the LED is oriented in one direction, unlike omni-directional light sources of the past. Knowing that direction, we can efficiently manage all light produced by the LED light bulb. An average LED bulb lives for 50,000 hours and produces up to 100 lumens per Watt turning well over 10% of supplied energy into light. It does not contain cancerogenic mercury.
Early LED bulbs had problem with a colour of the light, but by now it improved greatly and LED light bulbs in a wide spectrum of light colour from 2700degK to 7000degK are available.
In a few short years LED bulbs will be the main light source in Canada.
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