> For the complete documentation index, see [llms.txt](https://vesta-guide.gitbook.io/vesta-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://vesta-guide.gitbook.io/vesta-guide/italian-it/certificati/vesta-421-vesta-336-vesta-384.md).

# VESTA-421  / VESTA-336 / VESTA-384

### **UL 217 e EN14604**

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