The biggest offering in the Mini Ring Light family that Smart Vision Lights has to offer: The RMX140 has multiple silicone lens options and a wide range of wavelengths, making it a versatile bright-field illumination option. In addition, a 100-500mm working distance and Multi-Drive™ means this Mini Ring Light is sure to improve your machine vision systems performance     
    
https://machinevisiondirect.com/products/svl-rmx140