... 2)OEM,ODM Offer 3) 1 year warranty touch screen wall switch Energy Saving Touch SwitchModel: HY-S382A ( two wire system) ... .With power saving, no contacting, no spark, longevity, security and reliable.Apply to: stair passageway, gallery, wash room, garage, ... of electric lines and installation of electric equipment should be conducted by professional electricians holding work permit. Switch on the ...