Package Contents: This set includes four 15W 120V replacement bulbs for sewing machines, ensuring you always have spare incandescent bulbs on hand.
Easy Installation: This 15W screw-in bulb features a 7/16-inch threaded base. Simply unscrew the old bulb and replace it with the new one—no special tools required.
Comfort Lighting Design: This traditional filament bulb is perfect for sewing enthusiasts who love classic and vintage sewing machines. It maintains the warm, natural light effect favored by many quilters and stitchers.