Edison Bulb 4 Pack - ST64 - Squirrel Cage Filament - Dimmable, Edison Style Vintage Light Bulbs ENERGY EFFICIENT, DECORATIVE, DIMMABLE BULBS, AMBER TINT - Perfect for contemporary or vintage decor. These Edison bulbs lend an attractive and warm, not overly bright, 2500 Kelvin glow that will enhance the ambience of any room. The bulbs feature a beautiful tapered design and elegant squirrel cage filament structure.