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I like I am sure most others consider AC as alternating polarity, but AC actually stands for alternating current so with pulse width modulated power supplies the polarity may remain static but the current still alternates between zero and maximum. Add some capacitors to smooth it and then yes DC but if no smoothing is it AC? And if a "driver" for a LED lamp is pulsed can it be called DC?
So if I get 10 - 30 volt DC lamps and try running them off something called a driver although voltage not current regulated could it damage the lamps or cause them to malfunction and if it did could I claim from the supplier as labelled DC when really AC?
So if I get 10 - 30 volt DC lamps and try running them off something called a driver although voltage not current regulated could it damage the lamps or cause them to malfunction and if it did could I claim from the supplier as labelled DC when really AC?