Aug 14, 2019 · Drivers Will Benefit From Solar Cats Eyes Road Studs. Now, the lane illuminated by the internal solar cats eyes road studs will guide passengers along Colorado Highway 93 between 64th Avenue and Colorado Highway. When driving on a dark road without street lights, solar cats eyes road studs has shown that it is a viable device, which can greatly improve the driving route to adapt to the driving public, especially in bad weather.