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1 of 1 found this helpful:
The opaque coating gives much better colour blending than I expected — at least, better than a 50-pack of 5mm RGBs for the same price. It took some fudging around with different resistors, but I found a combination that gives excellent yellow, magenta, cyan and white.
Bit pricey, but totally worth it. I’m definitely planning on buying more of these. LOTS more. >:D
Helpful notes/observations: - Common cathode = connect the longest pin to ground, put resistors on other pins - For equal perceived brightness (and a really good white mix), I used: R-100Ω, G-220Ω, B-150Ω. (Off 3.3V from a Teensy/YwRobot supply). - At the same brightness, the red uses far more current (14 mA vs. 3.5 for green and blue, using the above resistors)
I was all for RGB LEDs. Then I built a project using almost 100 RGB’s. Go addressable and get there quickly. There may be a little learning curve but well worth it. Yes they are more expensive, but I have learned that almost every time I work on a project I wish I could scale the project.
Conclusion: Well worth it to get a few to tinker with initially or for specific needs, such as a single indicator light on a project.