Always use current limiting resistors with LEDs. Do not look directly at UV LEDs. RGB LEDs are not flashing/rainbow LEDs with built in ICs. 0603, 0805, 1206, 3528/PLCC-2 SMD LEDs. 11 various colours of SMD LEDs in sizes 0603, 0805, 1206, and 3528/PLCC-2.
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