All TJM Xray Vision driving lights, whether in quartz halogen or 50W HID, come standard with clear polycarbonate lens covers. These provide a high level of driving light protection with almost no light output loss or distortion. TJM Xray Vision also has a range of colored cover options, that filter certain parts of the light spectrum to produce a light output with a particular color tone. These are useful for specific conditions that are better illuminated under different light colors, but also can be used if a driver prefers a particular light color: for example, the blue cover on a quartz halogen light will help make the light whiter in appearance. Also available are opaque black covers that can be used in states and districts that require driving lights to be covered when not in use. Check your local laws and regulations regarding use of driving lights, black covers and colored covers. Sold Each