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<blockquote data-quote="crycocyon" data-source="post: 122828" data-attributes="member: 13076">I was looking more into this and found this wiki link explaining it better:<a href="http://en.wikipedia.org/wiki/China_RoHS" target="_blank">China RoHS - Wikipedia, the free encyclopedia</a>More specifically:&quot;Environment Friendly Use Period (EFUP) is the period of time before any of the <a href="http://en.wikipedia.org/wiki/RoHS" target="_blank">RoHS</a> substances are likely to leak out, causing possible harm to health and the <a href="http://en.wikipedia.org/wiki/Natural_environment" target="_blank">environment</a>.[SUP]<a href="http://en.wikipedia.org/wiki/China_RoHS#cite_note-2" target="_blank">[2]</a>[/SUP]&nbsp; Each product is labelled with a circle composed of two arrows&nbsp; containing a number that gives the EFUP in years; for example, a circled&nbsp; 10 indicates an EFUP of 10 years.&quot;And Ken Rockwell's definition of what it means:&quot;&nbsp; ↓10↑: 10-year life expectancy before its lead-free&nbsp; (RoHS) solder grows&nbsp; tin &quot;whiskers&quot; that&nbsp;&nbsp; ensure its circuitry becomes&nbsp; unrepairable. In other words, a 10-year expected life before being&nbsp; thrown away.&quot;This guy's background is what, engineering? And he always claims to take so much time doing his reviews, yet doesn't even check something as basic as this. Why would he misinform people in this way and make up something completely false? I can't think of a practical reason why making something up about that symbol would be to his or anyone else's benefit.</blockquote>

[QUOTE="crycocyon, post: 122828, member: 13076"] I was looking more into this and found this wiki link explaining it better: [url=http://en.wikipedia.org/wiki/China_RoHS]China RoHS - Wikipedia, the free encyclopedia[/url] More specifically: "Environment Friendly Use Period (EFUP) is the period of time before any of the [URL="http://en.wikipedia.org/wiki/RoHS"]RoHS[/URL] substances are likely to leak out, causing possible harm to health and the [URL="http://en.wikipedia.org/wiki/Natural_environment"]environment[/URL].[SUP][URL="http://en.wikipedia.org/wiki/China_RoHS#cite_note-2"][2][/URL][/SUP] Each product is labelled with a circle composed of two arrows containing a number that gives the EFUP in years; for example, a circled 10 indicates an EFUP of 10 years." And Ken Rockwell's definition of what it means: [B]" [/B]↓[B]10[/B]↑: 10-year life expectancy before its lead-free (RoHS) solder grows tin "whiskers" that ensure its circuitry becomes unrepairable. In other words, a 10-year expected life before being thrown away." This guy's background is what, engineering? And he always claims to take so much time doing his reviews, yet doesn't even check something as basic as this. Why would he misinform people in this way and make up something completely false? I can't think of a practical reason why making something up about that symbol would be to his or anyone else's benefit. [/QUOTE]

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