The Light Bulb Revolution in Africa

These new bulbs are now more efficient than ever before. The science and controversy behind our simple lightbulbs over the past decade has been quite intense. As we do not want Nigeria to be a dumping ground for inefficient light bulbs, the competition in this industry has helped people save money and energy. And this is making our environment get the big boost it needs. This Article, shows you the revolution of light bulbs and what to know when purchasing a lightbulb. Still yeah!!!  I know it is not everyone that gives a crap about all that innovation. While manufacturers are trying to be the first to put out more efficient lightbulbs, we all know that a more efficient bulb doesn’t make you look as good and as effective as it should be.

light bulb

Incandescent bulbs are much less efficient than other types of electric lighting, converting less than 5% of the energy they use into visible light.

A light globe is an electric light with a wire filament heated until it glows. The filament is enclosed in a bulb to protect the filament from oxidation. Current is supplied to the filament by terminals or wires embedded in the glass. A bulb socket provides mechanical support and electrical connections.

Our ratings of LEDs and CFLs can help you find the right energy-saving bulbs for your fixtures.


Buying lightbulbs used to be a cinch. When your 60-watt incandescents burned out, you simply bought more 60-watt bulbs. But incandescents wasted a lot of energy to create that warm glow and were phased out. Energy-saving CFLs were meant to replace them, temporarily, and then LED lightbulbs arrived in stores.


Light Emitting Diode Bulb (LED):  LEDs use slightly less energy than CFLs, trimming your electric bill, and most are claimed to last 20,000 to 50,000 hours. That’s about 18 to 46 years when used three hours a day.

They cost more than other bulb types, although prices continue to drop. Some A-type bulbs, named for their bulbous shape and used in lamps and other general applications, do not evenly cast light in all directions, providing spotty light.

Compact Fluorescent Light Bulb (CFLs) :CFLs use about 75 percent less energy, last 7 to 10 times longer than the incandescents they replace, and cast light that’s warm yellow to cool blue, and colors in between.

They take time to fully brighten, especially when used outdoors in frigid temperatures.

Halogen Light Bulbs : Halogen, a type of incandescent bulb, uses about 25 to 30 percent less energy than standard incandescents. Halogen instantly produces light, and can be used almost anywhere and with dimmers.

They do not last much longer than standard incandescent bulbs yet cost more.


More than 95% of the power consumed by a typical incandescent light bulb is converted into heat rather than visible light. Other electrical light sources are more effective.

Thermal image of an incandescent bulb. 22–175 °C = 71–347 °F. For a given quantity of light, an incandescent light bulb produces more heat (and thus consumes more power) than a fluorescent lamp. While heat from lights will reduce the need for running a building’s heating system, in general a heating system can provide the same amount of heat at a lower cost than incandescent lights.

the light bulb

What to Know Before you buy an Energy Light Bulb

Before you go out to purchase a light bulb, these are some of the things you need to know so as to avoid being a dumping ground for inefficient light bulbs :

  • Bring along your old light bulb
  • Always read the label
  • Always check the color temperature : White light is about 3000K or so. Bright white light is 3500K to 4100K and bluer white light is 5000K to 6500K.

What You Actually want in a Light Bulb

  • Check if it’s dimmable
  • Ask/check if it works in fully enclosed rooms: This is important because if heat builds up inside the fixture it can change the bulb’s performance and shorten its life.
  • Check if it works fully outdoors
  • Check if it works with Photocell :Another way to save energy, the photocell turns off lights when daylight appears and turns them back on when it’s dark.

Chinedu Okeke

Chinedu is the founder of Nigerian Tech. He is a tech enthusiast who has the passion for emerging trends in the tech industry. He is also a professional web content developer.

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