E17 Phenolic Lamp holder base with bracket GE-317-1
Rated Wattage: 75 W
Rated Voltage: 250 V
Body Material: Phenolic
Body Color: Black
Overall Height: 33.7 mm
Certification and Standard: CSA, UL.

E17 Phenolic Lamp holder base are made of phenolic resin. This bakelite material is known for its resistance to heat, strength, and non-conductive characteristics.

In the early days of lamp sockets, a material called Bakelite was used to manufacture these sockets. In fact, Bakelite was the name of those light bulb sockets.