... ,dermal patches,freckles,chloasma,soft skin.. Led-pdt Acne Treatment Machine(PDT-3H),China,maker&exporter. 1).Characteristics:PDT-3H Photodynamic ... sunlight into cellular building blocks. 2).PDT-3H Technical parameter:Standard collocatation : 3 heads :red, yellow and blue,Control the time ... is one year.Within one year,we will repair the machine &replace the parts,and they are free.Our service is ...