These are 1SMD Flex Bulbs which come in bayonet or wedge style. When do you use this bulb? They are used if you have a sideways socket or you need to be precise on where the light placement will be. These come in Cool White (modern look), please note they are not non-ghosting. They can be used for inserts but you may have to use a non-ghosting bulbs if you are finding issues with flickering.
Cool White – Bayonet, Cool White – Wedge