4 packs of E26 E27 Pendant Light Sockets 1.8m (5.9ft ) ,come with extension cord , On/Off switch and US AC Power Plug,there are ceiling hooks and cord hooks for hanging ,easy and convenient to use it Safe: High quality materials ,insulation Flame retardant Heat resistant,corrosion resistant ,Durable ,CE certification Perfect for pendant lighting bulb in Kitchen Bedroom Bathroom Restaurant Cafe Shop Max wattage is 100W, working voltage rate: 110V-250V