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<blockquote data-quote="Jimrubbers" data-source="post: 520464" data-attributes="member: 34258"><p>I'm trying to convert a maglite torch to led and recgargable. </p><p></p><p>I have a 1w led 350ma</p><p></p><p>I have a 5v battery.</p><p></p><p>Led voltage drop is 3.4v</p><p></p><p>I worked it out that it would need a 4.7ohm resistor.</p><p></p><p>I connected everything up to the battery and the resistor got that hot that it melted the insulation. </p><p></p><p>Is there any reason this should be happening?</p><p></p><p>Any help greatly appreciated.</p><p></p><p>Heres the link to the led</p><p></p><p><a href="https://www.ebay.co.uk/itm/141679345010" target="_blank">https://www.ebay.co.uk/itm/141679345010</a></p></blockquote><p></p>
[QUOTE="Jimrubbers, post: 520464, member: 34258"] I'm trying to convert a maglite torch to led and recgargable. I have a 1w led 350ma I have a 5v battery. Led voltage drop is 3.4v I worked it out that it would need a 4.7ohm resistor. I connected everything up to the battery and the resistor got that hot that it melted the insulation. Is there any reason this should be happening? Any help greatly appreciated. Heres the link to the led [URL="https://www.ebay.co.uk/itm/141679345010"]https://www.ebay.co.uk/itm/141679345010[/URL] [/QUOTE]
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