Installation method:

The headlight lens cover and taillight lens cover are replaced in the same way.  
We suggest replacing both sides together to avoid the color gap caused by the old and new lenses.
We recommend finding a professional to install.
If you want to install it yourself, read the description below in detail. As my mother tongue is not English, there may be a lot of grammatical mistakes, please understand.

First, you'll need a heat gun and a box or container that can be sealed.
Remove the original taillight and place it in the box, then heat the original adhesive area evenly with a heat gun for approximately 15 minutes.
Use a box cutter to slowly Pierce the original adhesive seams and steadily separate them.Please note that the base may be damaged if the force is too strong.

After separation, use a box cutter to remove any remaining original adhesive from the base.Remove as much as possible.Then apply the base and new lens cover using any high-performance adhesive,Be sure to apply evenly, as uneven application can lead to leaks. Then begin to glue them together and evenly apply the edges of the gaps using a strong waterproof adhesive. Then use a box cutter to remove the extruded adhesive. Finally, use tape or other string to tie them up and leave them for 24 hours.