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I have this led floor lamp and the upright light/bulb has started to flicker yesterday. The lamp has been already a little bit problematic because recently the LED driver broke and I have to order one to the manufacturer, which was a pain in the…

I'm guessing that the problem now it's the led bulb, but has started to go bad for some reason I don't know. This is an educated guess since the other light/bulb is working just fine, in consequence only can be either the bulb or the dimmer.

Is there any way I can asses what is the faulty part using a multimeter, for example?

  • I would (carefully) check the supply voltage and make sure it’s 230v, for which this lamp is rated. The internal LED voltage converter will sometimes behave weirdly if powered by below spec voltage. – jbeldock Feb 2 '20 at 20:28
  • do you mean the driver? the lamp has the led driver outside the lamp (please check the link above). I'm adamant to think it's the cause because the manufacturer sent me like two months ago, But it doesn't look really sturdy, so could be. – lpuerto Feb 2 '20 at 20:48
  • I'm thinking to check the output current and see if it's constant. Any idea of what exactly have to check on the output of the driver? – lpuerto Feb 2 '20 at 20:49
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    It's not a driver per se, in that it doesn't drive a constant current. It is a constant-voltage power supply at 33 volts DC. Max current is 0.8 amps, with both lights on the lamp pulls around 0.75A. If it were a driver, the voltage would be variable and the amps would be precise. Also the power supply is happy on 100-240V input, which is typical of switching power supplies. So significant undervoltage in a 230V world is not a cause for concern. – Harper - Reinstate Monica Feb 3 '20 at 1:55
  • that wall wort is very very cheap and unreliable. get a real one from someplace else. – dandavis Feb 3 '20 at 18:58

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