Loading...

The shocking truth about cheap LED "corn cob" lamps

285,006 views

Loading...

Loading...

Transcript

The interactive transcript could not be loaded.

Loading...

Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Mar 16, 2014

NOTE: CE does NOT mean China Export, it's just a mis-spaced CE logo (just like the one on the back of an Xbox 360). https://en.wikipedia.org/wiki/CE_mark...
Comments mentioning China Export will be marked as spam automatically, because it's horseshit. Commenters trying to use alternative characters to bypass the spam filter get muted from the entire channel.

Based on feedback comments on my earlier video and a request from the folks at http://www.avforums.com/, this is a shorter test on a range of "corn cob" LED lamps available on eBay and Amazon.

If you're thinking of buying cheap LED lamps, whether it be online or from the local market, this video is for you! Of the six "corn cob" style LED lamps tested here, only ONE could be considered safe to use. Watch the video, know what to look for in a safe bulb and know the risks associated with the dangerous ones!

Some details left out of the video:
At 50mA-100mA, ventricular fibrillation (very rapid uncoordinated contraction of the ventricles of the heart) is possible.
Hand-to-hand body resistance of an adult lies between 1,000 and 4,000 ohms, depending on moisture, muscular structure and voltage. The average value is 2,100 ohms at 240V AC.
(source: Basic Industrial Electricity: A Training and Maintenance Manual, Kenneth G. Oliver, p156)
If your resistance at the lower end of the scale the current will be higher and the 100-200mA range is where you're at highest risk of fibrillation (and CPR won't fix fibrillation, you need a defibrillator for that).

Apologies if some of it sounds a bit scripted, that's because it IS scripted to stop me rambling quite as much as usual, I'm trying to strike a balance between brevity and detail here, and it's tricky!

If you want more information about what's inside the lamps, please take a look at my earlier video:-
https://www.youtube.com/watch?v=n3ci4...

Not interested in corn cob lamps? Mains LED spotlamps are just as bad! Check out Julian Ilett's video:-
https://www.youtube.com/watch?v=keaE7...

There's an excellent Lux magazine article by Emma-Lily Pendleton at https://luxreview.com/article/cheap-l...

Loading...

Advertisement
When autoplay is enabled, a suggested video will automatically play next.

Up next


to add this to Watch Later

Add to

Loading playlists...