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<p>[QUOTE=&quot;Derick, post: 1666118, member: 39142&quot;]What I am saying is that the use of pure white light does not give the same colour result as with full spectrum (broad spectrum). The difference between the two is mainly that broad spectrum include near UV wave lengths. One can see that in the coins I posted above.[/QUOTE]</p><p><br /></p>

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