They are for Singer Sewing Machine and many more.

Specification：
Socket:T10 194 168 192 2825 W5W
Lamp beads: 4014SMD 15SMD
Input voltage: 12V-24V
Product color temperature: 6000K.
Product brightness: 600LM per light
Life: 50,000 hours.
Working environment: -40 °C ~ 105 °C
Waterproof rating: IP65
Lifespan: 50000 working hours ,Adopt imported chips, stable quality, long service life
Cross Reference: W5W 194 147 152 158 159 161 168 184 192 193 259 280 285 447 464 555 558 585 655 656 657 1250 1251 12522450 2652 2921 2825 906 579

Package Include:
2x LED Bulbs

For Brother Sewing Machine Models: CS8072, HE240, LB6770, LB6800, NV900, NV900D, PC2800, PC3000, PC6000, PC6500, PC8200, PC8500, PS2200, PS2250, PS2300, PS2500, PS3100, SE350, SE400, ULT2001, ULT2002, ULT2003, ULT2003D.

For Bernina Sewing Machine Models: 120, 125, 130, 135, 145, 140, 150, 153, 155, 160, 163, 165, 170, 180, 190 & 200.

Part Numbers Include 4117810-03 and Alternative Part Numbers Include X50228051 & 31082-T X50228001, FX816367127027

For Singer Sewing Machine Models: 9143, 9210, 9217, 9224 and 9240.

Part Numbers Include 4117810-03 (411 78 10-03), 0075355000, 4131818-01, 000026002 and 479001-10

For Janome Sewing Machine Models: 1600P, 1600P-DB, 1600P-DBX, 1600P-QC, 2040, 3022, 4623LE, 6125, 6125QC, 625E Sewist, 6260, 6260QC, 6500, 6600, 706NX, 7061NX, 7325 Magnolia, 7330 Magnolia, 7360 Magnolia, 8077, 8048 Harmony, 980, DC2007LE, DC2010, DC2011, DC2012, DC2013, DC2014, DC3018, DC3050, DC4030, DC4030PR, DC5100, HF8077, HT2008, HT2008LE, JW7630, MC200E, MC300E, MC350E, MC4900, MC4900QC, MC5200, MC6300P, MC6500, MC6500P, MC6600, MC6600P, MC9500, MC9500P, MC9700, MO200, Sew Precise, SM5030C, TB30.

For Husqvarna Viking Sewing Machine Models: #1+, 1040, 1050, 1060, 1070, 1090, 1100, 1140, 1200, 1250, 183 Emerald 122, 118, Scandinavia 300, 350, 400, 415 Freesia, 425 Freesia, 445 Interlude, 500, 530, 535, 540, 545 Rose, 550, 555 Lily, 600 Rose, 605 Rose, 820 eXpressive, 910, 936, 940 Prisma, 945, 950, 960 Prisma, 980, 990 Prisma, Angelica, C10, C20, Designer 1, Designer 2, Facette, Orchidea, Lily, Lisa, Iris, Victoria.