Plastic lamp sokcets are usually made through an injection molding process. Plastic particles are melted at high temperatures and injected into the mold. The lamp holders are formed after cooling. The plastic lamp sockets series includes Edison lamp holders represented by E12 E14 E26 E27. The lamp holders of Jiaqixing factory have CE VDE ETL and other certifications. Plastic lampholders are lightweight, insulating, and cheap.