These snap on filters easily click-in on your current Unitron 15875 LED Near Vertical Illuminator Ring Light.
 
Clear - Protects the LED Light
 
Frosted - Diffuses the light. 
 
Amber - Helps to identify scratches. 
 
Blue - Allows for a more neutral color to be applied to your part which aids in identification of failures. 
 
Warming - Changes the color temp from 8000K to 5000K