reSee.it Video Transcript AI Summary
The speaker is at a customer’s house to demonstrate a test about which light bulbs people should put in their house “for health,” not for energy efficiency. They note there is no smart meter on the house and claim LEDs would save money only in some contexts; they say with a smart meter, calculations of amps and voltages show that people save no money on utilities. They further state that the “worse” part is health effects, and they demonstrate this using an oscilloscope showing a typical 60-hertz cycle.
They first turn on a “traditional light bulb made by Edison,” saying it should match the expected 120-volt 60-hertz cycle. The speaker describes the result as a “perfect sine wave,” with 120 volts, “no noise,” and no jagginess. They then use a spectrum analyzer and describe the incandescent/halogen spectrum as “more smooth,” with low in the blue and only a small bump, calling it a “normal spectrum.” The speaker claims this is why eyes “won’t be damaged” by incandescent or halogen bulbs: the spectrum is more consistent, like the sun, which puts out energy more evenly.
They then assert that dominant blue light in the 450 nm area is “extremely toxic” and will “damage your eyes.” Next, they turn on “light bulbs that supposedly saved the polar bear” (described as hot, with heat claimed as beneficial in wintertime). The speaker then “grab[s] all the old CFLs,” including those that contained mercury and were marketed as lasting 10–15 years. They claim the CFLs are made in China and demonstrate that the sine wave becomes jagged with “noise,” and that the bulbs are “not running at 120 volts.”
After that, they use the spectrum analyzer on the CFLs and claim there are spikes from flickering “millions and millions of times a second,” which they say makes people sick. They then return to LEDs, calling them “super energy efficient” and saying they don’t have mercury. The speaker demonstrates an “old LED” they call one of the “better ones,” describing the sine wave as noisy and stating that if a house has 30 of them, the noise would be even worse.
They again use the spectrum analyzer, claiming the LED is “pulsing” and has “a lot of blue” that acts like a beam. They say LED light-emitting diodes “actually put out a beam,” and that the blue light helps damage eyes and also “pollinating bugs.” They repeat the comparison by turning off the tested bulbs and returning to the original Edison bulb, stating the result is “quiet,” with a “more evenly” spread pattern and less pulsing. The speaker concludes that some other incandescents do better but states “you should never buy an LED,” and ends by telling viewers to do the opposite of what they are told on TV.