This is a simple metal ring to match Cree brand lights. It simply snaps in or out when you want to remove it. When the light is alone its presence helps redirect the light more sharply and when it hits it there is a slight glow or soft almost invisible color. With the lights off, it looks more elegant and will definitely cost $3-5 for each upgrade. I would definitely buy again. Cree products are well designed and easier to install than many other products, which extends to fixtures that use these Cree 6 Retrofit Downlight Trim Rings.
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