Using led driver as generic power supply

skmdmasud said:

Hi..
recently i bought some led driver which can give output of 5w and 3w. The drivers are very cheap and incredible small in size. I tested the 3w driver it gives a max of 900mA at 12V . So i was wondering why not use this drives instead of transformers. Transformers requires rectifiers,caps and are much big in size. Is it a good idea?

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Nigel Goodwin said:

Most probably a VERY poor idea, it's liable to be a current output rather than a voltage one, and unlikely to have very safe isolation from the mains.

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skmdmasud said:

what if i put a cap and voltage regulator, will that work. How can i check if its main isolated or not? the output measured 12V not 220

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