Lots of bright color LEDs and the whole package costs less than just shipping at any electronics store. If you're building circuits with flashing lights like I am, you can't go wrong. The pink and orange LEDs in particular are unlike any other I've seen and can make your project unique. "Purple" is actually UV-AFAICT. I wanted to be in awe of the yellow-greens, but they're very boring. Not with Star Docking though, as without them the package would have been a great bargain anyway!
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