Light Flicker Detecting Top
Description
Use This Device To Identify Energy Inefficient Light Fixtures By Their Low Frequency Flickering! All You Do Is Spin The Top And Look For A Blinking Bluish Line To See If You Could Be Using A Better Light Fixture! Why This Works: Fluorescent Light Bulbs Flicker At Twice The Ac Frequency Because The Magnetic Ballast Driving Them Is Directly Affected By The Ac Current Peaks. So 60 Hz Ac = 120 Hz Flicker. Newer More Efficient Solid State Fluorescent Tube Lights Flicker At A Much Faster Rate. This Top Has High Contrasting Colors Spaced In Such A Way That When Spun At Low Speed It Will Create A Frame Rate Interference, Just Like When You Look At Your Tv Through A Digital Camera. The Photos Taken With The Bluish Lines Are What You See With Slow Flickering Light, The Other Two Photos Used Sunlight Which Doesn'T Flicker And Just Makes A Red White Blur. Note: Some Led'S Have Low Flicker Rates And Will Give You A False Positive. Don'T Throw Away Your Energy Efficient Led'S!
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