Festoon Bulbs 2 per package FOR SIZING, You measure the Diameter of the end cap and the overall length (tip to tip)

Part Number SIZE Colour Volts Watts Shape SD 441209 1/4″ x 1 – 5/16″ White 12 3 short & thin SD 441854 5/16″ x 1 – 1/4″ White 12 10 short & fat SD 441071 3/8″ x 1 – 1/8″ White 12 10 short & fat SD 441070 9/16″ x 1 – 11/16″ White 12 15 long SD 441211 7/16″ x 1 – 3/4″ White 12 15 long SD 441212 7/16″ x 1- 3/4″ White 12 10 long ANC 529104 3/8″ x 1 – 11/16″ White 12 10 long ANC 529127 3/8″ x 1 – 5/8″ Red 12 10 long ANC 529200 7/16″ x 1 – 3/16″ Red 12 10 short & fat ANC 529333 3/8″ x 1 – 11/16″ White 12 10 long & dimpled AQS 90200-7 3/8″ x 1 – 11/16″ White 12 10 long & dimpled