You have to convert the power to 48v and back down to whatever you need on the o... | Hacker News

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		jansper39 66 days ago \| parent \| context \| favorite \| on: Power over Ethernet (PoE) basics and beyond You have to convert the power to 48v and back down to whatever you need on the other end which has losses, plus you have losses over the cable too.

rubatuga 65 days ago [–]

Well quite frankly 48V has lower losses than 12V

shadowpho 65 days ago | [–]

110v -> 48v (long thin cable) -> 12v

Versus

110v (long thick cable) -> 12v

Top has more conversions and more current running on smaller gauge

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