Le nouveau test de la boîte d'économie d'électricité, ce qu'il y a à l'intérieur
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28:35
Quelle alimentation réglable étonnante ? (3-24V 3A)
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18:06
$15 aliexpress 40W USB-C charger test
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20:46
Finally! A Battery That’s Better Than Energizer and Duracell!
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16:01
Big Scary LASER
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22:07
The Most Confusing Part of the Power Grid
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15:26
Dangerous USB chargers 16
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16:19
Power Factor Explained – Your Electricity Bill Money Drain (Reactive Power)
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14:23