Product specifications/features : 1) effective and energy-saving 2) green environmental protection 3) stable and reliable 4) space-saving & low noise 1.The matured and reliable serial communication 2.Smooth start, quiet moving 3.Top advanced door operator system 4.Efficiently & swiftly perfect green space enjoyment of Nature & harmony 5.Worm-gear traction machine 6.Automatic lighting of led energy-saving lamp 7.Electromagnetic compatibility without interference with Each other 8.Voice reporting 9.Photocell protection Primary competitive advantages : Well and high quality control Prompt delivery New product Customer's designs and logos are welcome Competitive prices Earth-friendly products Small order acceptable Odm accepted Oem accepted Wooden cases packing