Vintage screwin flat lamp socket: the screwin flat lamp socket design enables quick installation and easy bulb replacement, reducing maintenance time and hassle. Flameretardant Bakelite ceiling socket: constructed from flameretardant Bakelite material to enhance safety and lower fire risk in ceiling fixtures. Multibase set: each set includes multiple lamp bases, ensuring you have enough bases to meet various lighting needs across fixtures. Durable lamp holder connector: built for longterm use with reliable performance, providing steady lighting for years and suitable for lanternstyle applications. Use scenarios Replacing or upgrading ceiling fixtures in living rooms, hallways, or other areas with vintagestyle lighting to improve safety and maintenance efficiency. Installing lamp holders in lanterns or decorative lighting where durability and longterm reliability are important. Stocking spare bases for multifixture installations in homes or small commercial spaces, ensuring ready availability for ongoing lighting needs.