3.2 Performance The first thing to consider when talking about a light bulb’s performance is the brightness. The brightness of a light bulb is measure in lumens (lm). It measures how much light the bulb outputs so the more lumens, the brighter the light. The power consumption is also important to know how many lumens a bulb produces per watt. The ratio of total output lumens per total watts used to power a light bulb is called luminous efficacy.
Figure 2 shows a table comparing the luminous efficacy of each type of light bulb.
Another thing that must be taken in account regarding the performance of light bulbs is their light spans. A CFL bulb lasts about ten times longer than an incandescent bulb. They have an average lifespan of approximately …show more content…
This in turn affects the operational cost of LED bulbs. The price in the market for an LED bulb is $8. The price is more expensive compared to CFL bulbs. However, this expense is recovered in a long run since LED bulbs consume less energy than CFL bulbs. Only one LED bulb is needed for 25,000 hours of use. The total cost of electricity for the same amount of hours and same rate is $30. In the end, the total operation cost of a 10 watt LED bulb ends up being $38. When comparing the two operational costs, there is a difference of $10 between both options, leaving LED bulbs as a cheaper …show more content…
The fact that they last for more time means that they do not have to be replaced often. Therefore, the impact of manufacturing, packaging, and shipping is reduced. Additionally, they consume less energy, making them a more efficient option. However, according to Seong-Rin Lim , a Korean environmental engineer, in his article “Potential Environmental Impacts from the Metals in Incandescent, Compact Fluorescent Lamp (CFL), and Light-Emitting Diode (LED) Bulbs,” LED and CFL bulbs contribute to the resource depletion of copper due to its high content. Many metals are used for the making of LED bulbs. Ling also mentions that “considerable resource depletion impacts will occur due to the insufficient availability of silver, gold, antimony, and copper resources” (1044). Gold and silver are used to make the LED chip. Aluminum is used for the heat sink as mention previously. A benefit that LEDs have is that they do not contain any mercury which makes them a more environmental friendly option. LED bulbs can also be recycled due to the amount of metals and plastic they
Figure 2 shows a table comparing the luminous efficacy of each type of light bulb.
Another thing that must be taken in account regarding the performance of light bulbs is their light spans. A CFL bulb lasts about ten times longer than an incandescent bulb. They have an average lifespan of approximately …show more content…
This in turn affects the operational cost of LED bulbs. The price in the market for an LED bulb is $8. The price is more expensive compared to CFL bulbs. However, this expense is recovered in a long run since LED bulbs consume less energy than CFL bulbs. Only one LED bulb is needed for 25,000 hours of use. The total cost of electricity for the same amount of hours and same rate is $30. In the end, the total operation cost of a 10 watt LED bulb ends up being $38. When comparing the two operational costs, there is a difference of $10 between both options, leaving LED bulbs as a cheaper …show more content…
The fact that they last for more time means that they do not have to be replaced often. Therefore, the impact of manufacturing, packaging, and shipping is reduced. Additionally, they consume less energy, making them a more efficient option. However, according to Seong-Rin Lim , a Korean environmental engineer, in his article “Potential Environmental Impacts from the Metals in Incandescent, Compact Fluorescent Lamp (CFL), and Light-Emitting Diode (LED) Bulbs,” LED and CFL bulbs contribute to the resource depletion of copper due to its high content. Many metals are used for the making of LED bulbs. Ling also mentions that “considerable resource depletion impacts will occur due to the insufficient availability of silver, gold, antimony, and copper resources” (1044). Gold and silver are used to make the LED chip. Aluminum is used for the heat sink as mention previously. A benefit that LEDs have is that they do not contain any mercury which makes them a more environmental friendly option. LED bulbs can also be recycled due to the amount of metals and plastic they