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Tech Head - The Technology Section
So changing from 12v Halogen to 12v LED (bollox ?)
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<blockquote data-quote="Vipersan" data-source="post: 960642" data-attributes="member: 325666"><p>Well ..</p><p>having completely removed a glass envelope from around one of these non fuctional LED lamps last night ..</p><p>I then repaired the soldered connections using lead solder ...</p><p>The 2 pin push connection having been retained and left intact ..</p><p>This free floating pcb now re-connected was fitted into one of the 12v halogen downlight fittings ...and powered up ..</p><p>No problems ..it lit up fully ..</p><p>The lamp remained on overnight ..and is still fully functional this morning ...</p><p>So I'm now convinced of by heat melting solder theory..</p><p>The lamp still generates heat ..but this can now escape and vent upwards into the drop ceiling space..</p><p>Problem now is that the diameter of the pcb is less than the original 35mm lamps glass enclosure ..</p><p>So ..back on ebay ..and much searching later ..</p><p>discovered these in china ..</p><p><a href="http://www.ebay.co.uk/itm/271588726951?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT" target="_blank">5 Clear Round Glass Dome Seals 35mm</a></p><p>Ordered 3 packs of 5 ....at just over a £1 each pack..</p><p>If they fit then I have a way to fit the led pcb securely ...</p><p>We shall see..</p><p>meanwhile the test will continue and the repaired led lamp will remain on for a few days continuously..</p><p>rgds</p><p>VS</p></blockquote><p></p>
[QUOTE="Vipersan, post: 960642, member: 325666"] Well .. having completely removed a glass envelope from around one of these non fuctional LED lamps last night .. I then repaired the soldered connections using lead solder ... The 2 pin push connection having been retained and left intact .. This free floating pcb now re-connected was fitted into one of the 12v halogen downlight fittings ...and powered up .. No problems ..it lit up fully .. The lamp remained on overnight ..and is still fully functional this morning ... So I'm now convinced of by heat melting solder theory.. The lamp still generates heat ..but this can now escape and vent upwards into the drop ceiling space.. Problem now is that the diameter of the pcb is less than the original 35mm lamps glass enclosure .. So ..back on ebay ..and much searching later .. discovered these in china .. [URL='http://www.ebay.co.uk/itm/271588726951?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT']5 Clear Round Glass Dome Seals 35mm[/URL] Ordered 3 packs of 5 ....at just over a £1 each pack.. If they fit then I have a way to fit the led pcb securely ... We shall see.. meanwhile the test will continue and the repaired led lamp will remain on for a few days continuously.. rgds VS [/QUOTE]
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Tech Head - The Technology Section
So changing from 12v Halogen to 12v LED (bollox ?)
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