This is a Brand New CLEAR 64 LEDS SCREW IN type LIGHT BULBS that fits many Elna, Pfaff, Bernina, Bernette Home Sewing Machines and Sergers using 7/16"" base Screw In Light Bulb type.

50mm    total length 
15mm   bulb diameter
7/16"" (11.6mm)   screw base
Bright WHITE LED light.  
Save on energy.
220-230V 2.5W

for Babylock:
B15, B17, B21
BL20A, BL80, BL90, 
BL200, BL202, BL302, BL400, BL402, BL415, BL428K, BL500, BL500A (Jane), BL702, BL713, BL722, 
BL500, BL702, BL713, BL722, 
BL1500, BL1550, BL1556, BL1750, 
BL2000, BL2150, BL2160, BL2200, BL2500, BL2800, 
BL3500, BL5020, BL5260, BL5260D, BL5280E, BL5280ED, BL6200, BL8500, 
BL80, BL90, DBL34-60, BLSE200, BLSE300,
BL3-437, BL3-437D, 
BL4-415,  
BL4-728, BL4-728D, BL4-736, BL4-436D, 
BL4-738, BL4-738D, BL4-738NS, BL4-838D, 
BL5260D, BL5280E, BL5280NS, BL5280ED, BL5360ED, BL5370ED, BL5380ED, 
BLE1, BLE1/SX, BLE1AT, BLE1DX, BLE1LX, BLE1SX, BLE8 (Evolve), BLQP DBL34-60,
BLSE200, BLSE300,