What dangerous voltage? 15V is what you need to run the fairy lights...Thanks but this is an outside public area, can't step up to a dangerous voltage.
Is that a local law? The inverter is completely contained and with the power supply plugged in I don't see any danger.Thanks but this is an outside public area, can't step up to a dangerous voltage.
Is that a local law? The inverter is completely contained and with the power supply plugged in I don't see any danger.
I've done something similar to this few times but it involves opening the case of the power/control module (AC supply/controller) it also usually mean loss of pushbutton function, but here goes:hi pm,
This type of module will step up from 12Vdc to higher voltage, but the 12Vdc source will have to be capable of supply the current for the converter.
Do you have a link to the Fairy light sellers web page.?
E
https://www.ebay.co.uk/sch/i.html?_...7.m570.l1313&_nkw=12V+step+converter&_sacat=0
I've done something similar to this few times but it involves opening the case of the power/control module (AC supply/controller) it also usually mean loss of pushbutton function, but here goes:
Carefully split the case of the power/control unit using hacksaw, knife blade, etc. Once open clean out the silicone or other materials so you have access to the ckt board. One end of the board is the AC input side and the other is the PWM output side. In between should be a transformer that steps down the voltage and applied it to a rectifier ckt. Carefully unsolder the transformer and remove it. Check the pads where the secondary was connected. One side should pass through some surface mount diodes and then on to a fairly large capacitor. Mind the capacitor polarity and apply your 30V DC across the cap. (I've also just applied the 30V to the secondary pads). This remove all of the higher voltage components on the primary side from the circuit and all you are left with are the LED drivers and the pattern generator. If you don't already have a convenient 30V source there are plenty of buck converters available dirt cheap. You may be able to salvage the pushbutton program selector feature but I don't think this is likely.