... service FeaturesKey Features• Built-in filter, anti-interference ability• High efficiency, low power consumption, in line with the the CEC ... switches, reading machines, e-books, digital photo frame, electronic tools, high-definition player, electric toys, advertising machine, air purifier, burglar alarm ... -pInsulation ResistanceDC500V 100M Ω(min)MTBF>20000Hrs USB 5W Power adapter UL SFN050100-US