![What is the role of this Zener diode in a LED string? (Old traffic light restoration) - General Electronics - Arduino Forum What is the role of this Zener diode in a LED string? (Old traffic light restoration) - General Electronics - Arduino Forum](https://europe1.discourse-cdn.com/arduino/optimized/4X/9/f/f/9ff9690f0f4334c332fae02c749c26747073c46e_2_517x291.jpeg)
What is the role of this Zener diode in a LED string? (Old traffic light restoration) - General Electronics - Arduino Forum
![Zener Diode + fuse overvoltage protection for LEDs with constant current driver- fast or slow blow fuse? - Electrical Engineering Stack Exchange Zener Diode + fuse overvoltage protection for LEDs with constant current driver- fast or slow blow fuse? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/R7FIS.jpg)
Zener Diode + fuse overvoltage protection for LEDs with constant current driver- fast or slow blow fuse? - Electrical Engineering Stack Exchange
![Zener diode for overvoltage protection | Toshiba Electronic Devices & Storage Corporation | Europe(EMEA) Zener diode for overvoltage protection | Toshiba Electronic Devices & Storage Corporation | Europe(EMEA)](https://toshiba.semicon-storage.com/content/dam/toshiba-ss-v3/master/en/semiconductor/product/diodes/articles/zener-diode-for-overvoltage-protection_features_1_en.png)