Do you know clearly how to choose p21w led? I would like to give you answer as below.

P21w led bulbs always used as turn signal and tail lamps.

As you know, standard p21w bulb is made of by filament, so life time is a big problem.

But p21w led can solve this problem and life time will be added so much.

Not only good life time, and also p21w led bulbs are very brighter.