What is the risk of the transformerless power supplies ??

be80be

Joined Jul 5, 2008
1,944
There is only one problem with them I see.
If you don't no nothing about one or how to make one and are asking how.
You should leave it alone and buy a UL listed supply.
You can get killed burned or hurt bad don't play with mains power it the bottom line.
 

Dodgydave

Joined Jun 22, 2012
8,472
Transformerless supplies are ok as long as you don't want to repair it or work on it, they're ideal for small confined spaces, no heat wasted, low current,in a double isolated plastic case, like pir security lights.
 
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