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down lighters
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<blockquote data-quote="kme" data-source="post: 19020" data-attributes="member: 113"><p>For future reference:</p><p></p><p>If you are wiring low voltage downlights..............</p><p></p><p>Be aware that the wiring from secondary of transx to lamp is ACTUALLY drawing 50/12 = 4.1A!! If you use 1 150W tranny for 3 lamps, and daisy-chained (not recommended), you`d have almost 13A on the first section of cable.</p><p></p><p>This in turns affects volt drop, more than you`d normally think.</p><p></p><p>esp. bearing in mind that 12V lamps don`t like having their voltage messed with unduly.</p><p></p><p>I`ve seen a lot of people use 1.5mm from JB / rose to the tranny. then thin .75 flex to the lamps. When you tell them they`d be better off the other way round, they look at you like you`re an idiot! "It`s only 12 volts" is the usual comment.</p></blockquote><p></p>
[QUOTE="kme, post: 19020, member: 113"] For future reference: If you are wiring low voltage downlights.............. Be aware that the wiring from secondary of transx to lamp is ACTUALLY drawing 50/12 = 4.1A!! If you use 1 150W tranny for 3 lamps, and daisy-chained (not recommended), you`d have almost 13A on the first section of cable. This in turns affects volt drop, more than you`d normally think. esp. bearing in mind that 12V lamps don`t like having their voltage messed with unduly. I`ve seen a lot of people use 1.5mm from JB / rose to the tranny. then thin .75 flex to the lamps. When you tell them they`d be better off the other way round, they look at you like you`re an idiot! "It`s only 12 volts" is the usual comment. [/QUOTE]
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