you need to make a compromise..

- lower VLT makes the glass darker. good for privacy. (dark black exterior look)
- higher VLT makes the glass clearer. good for night driving. (best vision for driver)

the best compromise would be 30-40% VLT for the windshield.

actually abroad, 70% VLT ang required in UK and certain states in the US.

Window film - Wikipedia, the free encyclopedia



for brands, i can recommend V-Kool, Huper Optik, Solar Gard and 3M.