Miniature LED Bulb

By theory, LED lights should last up to 30,000 working hours. Realistically though, external factors add upto the longevity of the bulbs. These factors include heat, voltage/current, weather, vehicle application, etc, can decrease the lifespan of the bulbs.  Ultimately, the LED bulbs last up to 20,000 hours.

You can get from a variety of colors, such as the ones we provide - White, blue, red, yellow. However, the color we would recommend is Xenon white, or 6K white because that is technically the brightest. 

There are no restrictions when it comes to what light should you put in the interior of the car. For the exterior, we would recommend you double check with your local or state laws. You can have a good idea by this:

Front of vehicle - 
Amber/Yellow
White

Rear of vehicle - 
Red
Amber/Yellow
White (license plate) 

Following the above guide should be considered typically safe, but it is still recommended to double check. 

The T10/T15 are relatively small bulbs that belong to the miniature wedge LED family. 

Most commonly known as 'festoon' type bulbs, these are the type that have metal ends on either ends. 

Commonly used for: Interior lights for most vehicles. 

D31 bulbs are 31mm, and are associated with: DE3175, DE3022, and DE3021 bulb size. Again, these are uses for interior lighting. 

D36 bulbs are 36mm, and are associated with: 6418, 6411, C5W, DE3425, and DE3423 bulb size. They can be used for license plate lights. 

D42 bulbs are 42mm, and are associated with: 578, 211-2, 212-2, and 579 bulb size. They can be used for interior lighting.