Up for sale is 2  push in Bulbs for you machine. 11/32" Base, aprox. 5/8" . 15W - 110/120V . Bulbs have 2 pin contacts on bottom. Bulbs are a little over  2" but the length of the bulb is not that important. If your bulb is a little longer the important thing is the base.

Bernina Models

530, 534, 540, 640, 642,, 701, 707, 708, 709, 717 - 729, 730 - 732, 740 - 750, 801,803,807,808, 809, 810, 811 - 819, 830, 840 - 850, 900, 910, 930, 940 , 1000, 1001,1010,1001,1015

Item will ship First Class with Delivery Confirmation. Please e-mail any questions. Thanks