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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: 963039" data-attributes="member: 325666"><p>Time to resurrect this thread ...on account the 35mm dia glass discs I ordered from China finally arrived..</p><p>I have now got my test lamp pcb (with glass envelope removed and resoldered using leaded solder) behind one of these half convex glass discs..</p><p>Obviously any heat generated cannot escape downwards now ..so the pcb will get hotter ..BUT ...the heat generated by the leds/pcb now has an escape route upwards ...into the lamp fitting ..which is open at the top ..thus the heat can escape into the dropped roof space and disperse..</p><p>So far so good ..</p><p>I shall be keeping a watchful eye on this test lamp...but unlike the previous solder failure in less than an hour ..has now been running behind glass for several hours..</p><p>Here are a few pics.</p><p>rgds</p><p>VS[ATTACH=full]91096[/ATTACH]</p></blockquote><p></p>
[QUOTE="Vipersan, post: 963039, member: 325666"] Time to resurrect this thread ...on account the 35mm dia glass discs I ordered from China finally arrived.. I have now got my test lamp pcb (with glass envelope removed and resoldered using leaded solder) behind one of these half convex glass discs.. Obviously any heat generated cannot escape downwards now ..so the pcb will get hotter ..BUT ...the heat generated by the leds/pcb now has an escape route upwards ...into the lamp fitting ..which is open at the top ..thus the heat can escape into the dropped roof space and disperse.. So far so good .. I shall be keeping a watchful eye on this test lamp...but unlike the previous solder failure in less than an hour ..has now been running behind glass for several hours.. Here are a few pics. rgds VS[ATTACH=full]91096[/ATTACH] [/QUOTE]
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Tech Head - The Technology Section
So changing from 12v Halogen to 12v LED (bollox ?)
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