screw base

• lightbulbElectric illumination source
• EdisonProlific American inventor
• socketHollow receiving cavity
• threadedPassed through an opening
• incandescentGlowing from heat

lamp · wattage · filament · bayonet · twist · fixture · mount · candelabra · mogul · ceramic · brass · porcelain · tungsten · spiral · tighten · illumination · chandelier · LED