To evaluate the cost-effectiveness of an LED bulb compared to a CFL, we can consider the following factors:
Initial cost: LED bulbs are more expensive to purchase than CFL bulbs.
Energy efficiency: LED bulbs use less energy than CFL bulbs.
Lifespan: LED bulbs have a longer lifespan than CFL bulbs.
Using the data in the table, we can calculate the cost of operating each type of bulb over a period of 10 years:
Bulb type Initial cost Energy consumption (watts) Lifespan (hours) Cost per 10 years (assuming $0.15/kWh)
LED $10 10 25,000 $15
CFL $5 14 8,000 $21
As you can see, the LED bulb is more cost-effective over a period of 10 years, even though it has a higher initial cost. This is because LED bulbs use less energy and have a longer lifespan than CFL bulbs.
In addition to the cost savings, LED bulbs also offer other advantages over CFL bulbs, such as:
They are more durable and less likely to break.
They produce a higher quality of light.
They do not contain mercury.
LED bulbs are a more cost-effective and environmentally friendly choice than CFL bulbs.