package content 3x E26-E17 Socket Extender Specifications: The quality screw base adapter enlarges your E17 base bulb to a standard medium E26 bulb. Reference Working: Voltage / Max. Wattage: 12-250V / 75W Dimension: Dia36.5 mm* H60.0mm / 1.44inch*2.36inch Material: Flame Retardant thermoplastic polymer(PBT) and cooper connector 3pcs in a lot.Enlarges your Intermediate base E17 bulb base to fit E26 E27 medium sockets Reference Max.Voltage/Max.Wattage: 250V / 75W UL Standard.Quality,safe and eco-friendly Quality Insurance: 1 year replacement warranty &7 days return for free Easy to install.Suitable for E17 CFL and LED bulbs