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OEM Part No. is 84703M81A21-V12
Replaced basic IRVM of MARUTI SUZUKI Alto LX 2011 Type 2 with day and night IRVM.
At night the new day and night IRVM helps in warding off the glare off the headlights from the car behind. In the day, the day and night IRVM mirror works just like any standard ordinary rearview mirror, aptly showing the traffic behind.
The day and night IRVM has two surfaces - front and back. The front cover is like a straight glass, while the back surface has a reflective material coating. So, while the front acts like glass, the light gets reflected from the back cover. The standard rearview mirror has both the front and the back parallel to one another. However, in a day and night IRVM, the front and the back are not parallel. The bright reflections during the day can be viewed from the back surface, and a fainter reflection can be viewed from the front during the night.
Understanding the Technology
The manually-operated day and night IRVM is simply flipped using a lever. In this case, the mirror is a prismatic mirror with a wedge-shaped mirror on the inside. During the day, the objects behind are reflected from the surface of the mirror. At night, the plain mirror tends to bounce off the light coming in from the headlights of the car behind. It can distract the driver and cause a lot of strain on the eyes. Such a glare also becomes the reason for many accidents on the road amidst traffic.