Piranha / SuperFlux

Rugged, Square And Very Bright: These LED Serve In Break Lights And Other Places Where Visibility Matters

Piranha LED are small and compact square LED with a relatively large light output with four pins (instead of two). They are also known as SuperFlux.

Similar to Straw Hat LED, they have a built-in lens for a wide viewing angle but are even brighter than the latter. There are even high performance piranha LED available that internally use two light emitting chips.

Anode and Cathode

To identify anode and cathode, closely examine the piranha LED. Use a magnifying glass if at hand.

  • Anodes: On one side you can identify two holes. The pins on this side are the anodes (+).
  • Cathodes: One edge is rounded. When you look at the LED from the top and place the rounded edge to the lower right side, then the bottom pins are the cathodes

The picture shows both the rounded edge and the two cathode pins from a different angle. The rounded edge is positioned at the lower right, so the two pins seen in the picture are the cathodes.

Typically, both anodes and both cathodes are internally connected. You need to connect only one anode and cathode, and use only one series resistor.
With the high performance multi-chip piranha LED, all pins must be wired.

Intended Use

Piranha LED are often used in automotive use cases where a robust and very bright light with a wide viewing angle is needed, i.e. in brake lights.

Even though not required with the regular types, for added robustness you can connect anode and cathode with two separate wires each.

Here you can see the built-in lens on to of the housing that is designed to emit the light in almost all directions (wide viewing angle):


Please do leave comments below. I am using utteran.ce, an open-source and ad-free light-weight commenting system.

Here is how your comments are stored

Whenever you leave a comment, a new github issue is created on your behalf.

  • All comments become trackable issues in the Github Issues section, and I (and you) can follow up on them.

  • There is no third-party provider, no disrupting ads, and everything remains transparent inside github.

Github Users Yes, Spammers No

To keep spammers out and comments attributable, all you do is log in using your (free) github account and grant utteranc.es the permission to submit issues on your behalf.

If you don’t have a github account yet, go get yourself one - it’s free and simple.

If for any reason you do not feel comfortable with letting the commenting system submit issues for you, then visit Github Issues directly, i.e. by clicking the red button Submit Issue at the bottom of each page, and submit your issue manually. You control everything.


For chit-chat and quick questions, feel free to visit and participate in Discussions. They work much like classic forums or bulletin boards. Just keep in mind: your valued input isn’t equally well trackable there.

  Show on Github    Submit Issue

(content created Feb 26, 2024 - last updated Mar 18, 2024)