Thin filament bulbs are made with a thinner LED filament strips that can be coiled more tightly than regular LED filaments strips. This allows the bulbs to look more closely to traditional incandescent Tungsten Filament and can be more decorative and draws more attention. The Better Homes & Gardens ST19 LED bulbs offer a vintage look with their teardrop shape measuring 2.5 by 5-6 inches. They?re more efficient than traditional bulbs and fit well in fixtures like pendant lights and chandeliers comes with E26 standard medium base.