Auto Dimming Rearview Mirrors
Most of the drivers maybe do have experience that, to drive at night is not as confident as at day time.
Darkness is one of the reason for you to be less confident. The more important issue is that, the strong light from backward cars makes you dizzy.
Our auto dimming rearview mirrors, do have two sensors in front of the mirror and at the back of the mirror. The rearview mirror can dimming automatically according to the light difference detected by the two light sensors. Then, the strong light was removed. You can see very clearly what is behind your car when you need to change you line.