What is the source of this problem? I am studying LED characteristics. I found that yellow and blue LED has low voltages than red and green respectively. - Quora
![infrared - Datasheet's frequency vs. real-world frequency for IR LED - Electrical Engineering Stack Exchange infrared - Datasheet's frequency vs. real-world frequency for IR LED - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/dhzH8.png)
infrared - Datasheet's frequency vs. real-world frequency for IR LED - Electrical Engineering Stack Exchange
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![1.: Comparison of forward voltage U LED of the IR LED measured by LED... | Download Scientific Diagram 1.: Comparison of forward voltage U LED of the IR LED measured by LED... | Download Scientific Diagram](https://www.researchgate.net/publication/334491523/figure/fig23/AS:781291549110276@1563285829450/Comparison-of-forward-voltage-U-LED-of-the-IR-LED-measured-by-LED-driver-IC-and.png)