Bakelite lamp sockets are better than plastic lamp holders, and the main models are B22, E12, E14, E26, E27, etc. Bakelite lamp base is more resistant to high temperatures than ordinary engineering plastics and has better insulation effect, making it safer and more beautiful to use. The main purpose of the lamp holder is to fix and support the bulb, ensure that the bulb can be stably connected to the power source, and maintain the position and angle of the bulb. Lamp holders also provide protection, preventing people from coming into contact with exposed wires and sparks.