Unifi Switch Flex 2.5G PoE - What is PoE+++?

I finally get my U6 Enterprise access point connected to a 2.5G network connection using the brand new Unifi Switch Flex 2.5G PoE. Apparently you can power it with PoE+++?
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Unifi Flex Switch 2.5G PoE (affiliate): https://store.ui.com/us/en/products/u...
Merchandise store: https://lars-klint.creator-spring.com/

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Late at Night by Sakura Girl |   / sakuragirl_official  
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Chapters:
0:00 Half speed U6 Enterprise
1:26 Expert box opener and sticker peeler
3:42 The plan to upgrade to 2.5G
5:43 Installation
6:15 A little booboo
8:04 Specs. What is PoE+++?
12:50 Features
18:34 Simple, well priced, 2.5G, PoE++. What is not to love?