I have used similar systems in the past with similar results. Taking yellowed and road-weathered plastic lens headlights and restoring them to a clarity that allows your headlight beam to properly project in front of your vehicle may not seem like a necessity, but when traveling on dark and unlighted roadways or highways, the difference is immediately noticeable.
The 3M Headlight Restoration System is relatively easy to use by closely following the included simple directions. Basically, the process begins with removing the yellowed and weathered surface of the plastic lens using a series of abrasive disks attached to your household drill. As each disk removes and ‘sands’ the lens exterior, each subsequent disk in the series further sands the previous step to a smoother finish. Finally, the use of a wet-sanding disk and subsequent polishing using automotive rubbing compound restores the plastic lens to a clarity that allows your headlight beam to properly project its light as initially intended by the automobile manufacturer, allowing you to see further down the roadway.
The use of the 3M Headlight Restoration System is further simplified because it uses an attachment (provided) for use of your household drill, whereas many of the other systems only give you the abrasive sanding materials (sandpaper) in different grits and a little more demand for ‘elbow grease’ to accomplish the same end result.
I found the 3M Headlight Restoration System on line for around $10 whereas other systems are about twice that price at your local automotive parts retailer. Each lens took about 20 minutes to complete with the 3M Headlight Restoration System, but the other restoration kits available, that don’t use a hand drill, require a bit more time resulting in about a 3-hour total restoration job. The results are basically the same, just with far less effort using the 3M Headlight Restoration System.
An added benefit to restoring your headlights to their original clarity, is the increase in beatification and additional resale value vice selling an older vehicle with old looking headlights. It not only looks better, it’s an increase in safety when driving on dark roadways.