A new study finds that a simple switch in your home’s lighting is what can make the difference between a wall clock or a simple table lamp.
Researchers at Ohio State University examined more than 3,500 wall clocks and table lamps sold in 18 states and in Canada.
They found that many manufacturers of the bulbs are misleading consumers about the power of their bulbs.
The research was published online today (April 24) in the journal PLOS ONE.
“The majority of these bulbs are rated at 50 watts, which is very close to what many consumers need for their home,” said study lead author Jennifer A. Houser, an assistant professor of electrical and computer engineering at OSU.
“We’ve found that these bulbs come with a very low-quality warranty, and they can be extremely expensive.”
Houser’s team used a mathematical formula to compare the ratings of a dozen different types of light bulbs.
It found that a bulb rated at 1 watt was likely a better choice than a bulb that was rated at 20 watts or more.
“These bulbs were all rated to be at least 10 times brighter than the average light bulb, which means that they were rated for 20 watts,” Housers said.
The researchers also used a similar math formula to look at other types of lamps.
They also found that some lamps rated at 2 watts were better than a lamp rated at 3 watts.
“If you’re looking at a light bulb that has an amazing brightness rating, but it’s only rated to work with two different types,” Hayser said, “you’re going to end up with a lot of wasted energy in the battery, which can have significant energy savings.”
Hosiery is the director of the Electrical Engineering and Computer Sciences Department at Ohio Wesleyan University.
He is also an assistant research professor in the department’s electrical engineering and computer sciences program.
He has a doctorate in electrical engineering from Ohio State.