Westend, I would love to see a picture of your lights. Google shows me there are all sorts of card display holders, and the idea is tempting.
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The backing that the LED circuit board is attached to is fastened to the ceiling with two small screws after connecting the wires (I actually use the included molex connectors since that makes connection and future replacement easy). The frame and glass lens is then slid onto the aluminum backer and over the LED panel.
These card frames come in a variety of styles.
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