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Led bulb lights then blows
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<blockquote data-quote="johnb2713" data-source="post: 549477" data-attributes="member: 35153"><p>Yes.</p><p></p><p>Put the switch on the input to the driver, in the 240v line.</p><p></p><p>What I suspect is happening is the output voltage is rising to provide the constant current that its configured to achieve 350ma, because the switch is open, there is no load and no current flow so the output voltage ramps up to the 36v. When switch on the ouput voltage from the charged capacitors of 36v with a bit current behind it will blow the LED.</p><p></p><p>If youre unhappy about switching the 240v, you could put a couple of resistors in series with the LED to take some of the surge out. 30 ohm, 5w resistor should do it and it wont reduce the brightness of the LED.</p><p></p><p><a href="https://www.ebay.co.uk/itm/122233114761?hash=item1c75a95089:g:YY0AAOSwvFZW8Bsf&amdata=enc%3AAQAIAAAA4NeCKk5bi0ELgS%2Bl3dmXXkcjSd%2BdziTn7KyeOHSEJmtDlUGMeCIL9%2FpInfP3AOgHfE2DZgzmcgU7FfiRwjlJ6Il3gbXtZLaMtbXheXAU0SpDXNwyRc2MxzFik398LwgV9TIp9aCEps0DicSYGnuzncu5rnTRkKDPsu6g16Jui3tZ2%2FblVdax%2FI6qVWbfFM5Fs9n%2BWW2A8sZMQfIBcMrlI%2FmLVV0PeR2TM8CvK54UGCVWfL0t0B7IEEBl6iBMgL90b6%2Fum33fsnMoryrBCjeC7sVvevF%2BFWbkwswXxRvB%2Fcnr%7Ctkp%3ABFBMlp6Ns8Ri" target="_blank">https://www.ebay.co.uk/itm/122233114761?hash=item1c75a95089:g:YY0AAOSwvFZW8Bsf&amdata=enc:AQAIAAAA4NeCKk5bi0ELgS+l3dmXXkcjSd+dziTn7KyeOHSEJmtDlUGMeCIL9/pInfP3AOgHfE2DZgzmcgU7FfiRwjlJ6Il3gbXtZLaMtbXheXAU0SpDXNwyRc2MxzFik398LwgV9TIp9aCEps0DicSYGnuzncu5rnTRkKDPsu6g16Jui3tZ2/blVdax/I6qVWbfFM5Fs9n+WW2A8sZMQfIBcMrlI/mLVV0PeR2TM8CvK54UGCVWfL0t0B7IEEBl6iBMgL90b6/um33fsnMoryrBCjeC7sVvevF+FWbkwswXxRvB/cnr|tkp:BFBMlp6Ns8Ri</a></p></blockquote><p></p>
[QUOTE="johnb2713, post: 549477, member: 35153"] Yes. Put the switch on the input to the driver, in the 240v line. What I suspect is happening is the output voltage is rising to provide the constant current that its configured to achieve 350ma, because the switch is open, there is no load and no current flow so the output voltage ramps up to the 36v. When switch on the ouput voltage from the charged capacitors of 36v with a bit current behind it will blow the LED. If youre unhappy about switching the 240v, you could put a couple of resistors in series with the LED to take some of the surge out. 30 ohm, 5w resistor should do it and it wont reduce the brightness of the LED. [URL]https://www.ebay.co.uk/itm/122233114761?hash=item1c75a95089:g:YY0AAOSwvFZW8Bsf&amdata=enc%3AAQAIAAAA4NeCKk5bi0ELgS%2Bl3dmXXkcjSd%2BdziTn7KyeOHSEJmtDlUGMeCIL9%2FpInfP3AOgHfE2DZgzmcgU7FfiRwjlJ6Il3gbXtZLaMtbXheXAU0SpDXNwyRc2MxzFik398LwgV9TIp9aCEps0DicSYGnuzncu5rnTRkKDPsu6g16Jui3tZ2%2FblVdax%2FI6qVWbfFM5Fs9n%2BWW2A8sZMQfIBcMrlI%2FmLVV0PeR2TM8CvK54UGCVWfL0t0B7IEEBl6iBMgL90b6%2Fum33fsnMoryrBCjeC7sVvevF%2BFWbkwswXxRvB%2Fcnr%7Ctkp%3ABFBMlp6Ns8Ri[/URL] [/QUOTE]
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Led bulb lights then blows
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