Sorted by Series Incandescent Single and Double Contact Bayonet
These are incandescent light bulbs. Some useful bulb identification information: BA 15d bulbs: double contact bayonet, 15mm base diameter, pins are opposite each other BAY 15d (DC Index) bulbs: double contact bayonet, 15mm base diameter, pins are offset so the bulb only fits into the socket in one orientation BA 15s bulbs: single contact bayonet, 15mm base diameter, pins are opposite BA 9s bulbs: single contact bayonet, 9.1mm base diameter, pins are opposite SV8.5 bulbs: festoon, 8.5mm base diameter S7 bulbs: festoon, 7mm base diameter
Note - bulbs in Table are sorted by Aqua Signal Series