The phrase "illuminating light" refers to a bright and clear light that helps to make things visible and brings clarity or understanding to a situation. Full definition
Can not ask for more except standard stability control, illuminated lights for door opener and window controls and 6 - CD changer in all cars. (carsdesk.com)
A variety of asymmetric hollow - core three - dimensional nanostructures fabricated by illuminating light on nanoparticles. (news.ncsu.edu)
Think whole coconuts, purple illuminating light bulbs and brass pineapples as glasses. (entrepreneur.com)