... relevant card for power10~15 seconds power cut delay after withdraw the cardLED indicationEnergy saving switchEU and UK standard ... :1pc/hard boxMinimum order200 piecesLead time:10~20 days after receive your depositcertifications:ISO 9001, CE, CQC ect. ... technology company, specialized on developing and producing energy saving switch, hotel doorbell system, central air conditioning thermostat, lighting ...