we are into led driver development using LinkswitchPH devices. I have a question. Say in RDR195 output voltage is 28v. I understand the driver will work satisfactorily with 500ma for a led string voltage range of 25.2 to 29.26v. My requirement is that the same driver should work for a range of 18v to 28v by keeping the current constant(500ma). Please advice.