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64x32 RGB LED Matrix - 5mm pitch : ID 2277 : $49.95 : Adafruit Industries, Unique & fun DIY electronics and kits
64x32 RGB Led Matrix Clock With Arduino - YouTube
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64x32 Flexible RGB LED Matrix - 4mm Pitch : ID 3826 : $44.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Adafruit 64x32 RGB LED Matrix - 6mm pitch : Amazon.co.uk: Business, Industry & Science