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I know some who have used these on IRLP nodes: <br>
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<font face="Times New Roman, Times, serif"><a class="moz-txt-link-freetext" href="http://www.ebay.com/itm/DC-DC-Buck-Converter-Step-Down-Module-LM2596-Power-Output-1-23V-30V-2014-/301218533352?pt=LH_DefaultDomain_2&hash=item4622060fe8">http://www.ebay.com/itm/DC-DC-Buck-Converter-Step-Down-Module-LM2596-Power-Output-1-23V-30V-2014-/301218533352?pt=LH_DefaultDomain_2&hash=item4622060fe8</a><br>
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