We have added the option for accent lighting on all of our cup holders. Here are our medium natural aluminum cup holders that measure 3 1/4″ ID by 3″ deep with a 4” flange. These are available in your choice of Amber, Blue, Green, Red or White.
https://www.streetmusclemag.com/news/more-led-innovation-from-watsons-streetworks/
https://www.fuelcurve.com/led-illuminated-cup-holders-and-inserts/