Question

Internal Unsolicited Proposal

Write an internal unsolicited proposal to a real organization/company about the problem with their energy using incandescent bulbs and why they should switch to energy saving LED bulbs.

Answer 1

The incandescent light bulb was the first electric lighting device created by Thomas Edison during the early 1900s and was part of peoples home since it was popularized by Thomas. There have been numerous criticisms from various people/groups demanding it to be phased out due to various reasons behind calls to ban them.

1. Low Efficacy: Electrical energy has to pass through a filament for it to be converted to heat and when its filament
becomes hot enough that light is produced.since this process generates more heat, about 90% of its output, hence in this
process, great energy is wasted. Therefore, incandescent bulbs become less efficient compared to fluorescent lamps and other devices.

2. Negative Environmental Impact: Environmentalist have labeled that incandescent light bulbs are not only harmful because
of the electricity they waste in producing heat, but also because of a substantial amount of carbon dioxide they emit and the
heat generate pushes cooling system like air conditioners to work harder during summer.

3. Short Lifespan: The lifetime of a standard incandescent bulb can range from 700 to 1000 hours.which is less a year. But if
compared to fluorescent lamps whose life span will be 4 to 5 years.

4. Costs Involved: They are not economical since they consume a large amount of energy and due to their short lifespan, they are more costly in the long run.

5. Sensitivity to Vibration: Incandescent bulbs are generally vulnerable to vibrations, hence perform poorly and their
lifespan shortened.

LED stands for a light emitting diode.LED lighting products produce light approximately 90% more efficiently than
incandescent light bulbs. It's visible light, prevent performance issues as the heat LEDs produce is absorbed into a heat
sink. Given below are a few advantages of LEDs.
1. Energy efficient: LEDs are now capable of outputting 135 lumens/watt.

2. Long Lifetime:50,000 hours or more.

3. Rugged: LEDs are also called Solid State lighting as they are made of solid material with no filament or tube.

4. No Warm-up period: LEDs light instantly.

5. Not affected by cold temperature: LEDs like low temperature and will startup even in subzero weather.

6. Environmentally friendly: LEDs contain no mercury or other hazardous substances.

LED lighting differs from incandescent and fluorescent in several ways. When designed well, LED lighting is more
efficient, versatile and lasts longer.LEDs are directional light sources, which means they emit light in a specific
direction, unlike incandescent and CFL, which emit light and heat in all directions. That means LEDs are able to use light and
energy more efficiently in a multitude of applications.LED bulbs that have earned the ENERGY STAR are subject to very
specific requirement to replicate the experience we have used to with a standard bulb. ENERGY STAR means high quality and performance in color quality, light output, and peace of mind.

As above we have highlighted the disadvantages of using incandescent bulbs and advantages of LEDs, hence propose to our
organization to switch from incandescent light bulbs to LEDs bulb.