Up for sale is High Quality Light SMD (3030 x 2)  LED Bulb (T10) - Push-in (Wedge Style) 24V  1W  
replacing incandescent bulbs (#413181802)

Dimension: 10x24mm
Material: aluminium
Lumen: 60LM
Base: T10 wedge type
Light color: white

Fits  Pfaff sewing machine models:
Creative 2.0, Expression 150, Expression 2.0, Expression 3.0, Expression 3.2, Expression 3.5, Quilt Expression 4.0, Quilt Expression 4.2

also fit Viking sewing machine models:
835 Sapphire, 855 Sapphire, Designer Topaz 30, Designer Topaz 20, Designer Topaz 50, Eden Rose 250C, Sapphire 830, Sapphire 850, Sapphire 870 Quilt, Sapphire 875 Quilt, Tribute 140C