Car ceiling leds are also called as reading leds.

All of car ceiling leds are SV8,5 bulbs.

But you need to pay more attention to them.

Because most of car ceiling leds are different sizes in there.

For example, most of car ceiling leds have 31mm, 36mm, 39mm, 41mm, 43mm and so on.

The most popular size of car ceiling leds shall be 36mm and 39mm.

In order to make you clearly our car ceiling leds, I will show you pictures as below.