Question

rank the types of light bulb from least efficient to most efficient.
1.
2.
what is the most efficient lightbulb?
incandescent light bulb
fluorescent light bulb
led light bulb

Explanation:

1. Ranking from least to most efficient

Step1: Recall efficiency of light bulbs

Incandescent bulbs convert a large portion of energy to heat, so they are least efficient. Fluorescent bulbs are more efficient than incandescent. LED bulbs are the most efficient as they convert most energy to light.

Step2: Rank them

Least efficient: incandescent light bulb; Middle: fluorescent light bulb; Most efficient: LED light bulb. So the order from least to most efficient is incandescent light bulb, fluorescent light bulb, LED light bulb.

LED light bulbs are known to have the highest energy efficiency among the three types (incandescent, fluorescent, LED) as they convert a much larger percentage of electrical energy into light (and less into heat) compared to the other two.

Answer:

incandescent light bulb, fluorescent light bulb, LED light bulb

2. Most efficient lightbulb