Direct dc supply from mains

Cool!! This type supplies have extraordinary feature of comit electrocution on owners frequently, especially when they wants to touch test witch tongue this zapping 6 Volts only. :-)

no isolation, deadly

illegal in most first world countries

ctually safer than some cheap fake small wallplug switching chargers and supplies for cell phones. Those babies when tiny isolation between primary and secondary breaks u hav trouble. 45khz over 300v peak semi DC resonating on anything possesing inductance to kilovolts, and hav enough power to pump through you body current measured in hundreds miliamps. TV shows not long ago a victim of "not so good quality" tiny cell phone charger. Half of head plus face burn to skull bone. lady have bad luck and survive. Line voltage do not leave you burned to ash and make from you eyes without a face. so beware especially that pulsing dc is extraordinary fatal having worst from DC and Ac together. For example can run a current through you even when u stand isolated because of capacitive couplingy of very high voltage and vey high frequency but as True AC at this frequency is harmless and can even be feeled this one is plsing dc so u fell worst nightmare of pulsating dc drilling u body self capacitance and rectifying herself on body electrolyte fluids deep bore into the bone have for nothing skin effect.

and the best is that all those small smps secondary are grounded via Y1 cap with one of line supply and closest as possible to high freq transformer input. Imagine when this cap has enough of miserable life and someday states that life is short and.....- comit a short haha whole hi freq shit have free way to lov volt seconadry output and all connected to it . this y1 cap MUST BE because if not EMI radiation wil eat us all alive without painkillers cryes those bunch of %&$#$+ who worry about some emi more than of human life. I have been almost electrocuted due to this cap shortage so i strongly recomend removing those cuz lots os them is cheap fake not even original.