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Does multiplexing a usb power cable from 2 cables into 1 impact energy efficiency? (sh.itjust.works)

submitted 1 year ago by SoySaucePrinterInk@sh.itjust.works to c/askelectronics@discuss.tchncs.de

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I have two led strips used for 2x27" monitor bias lighting. Each have their own USB cables for power. These two USB cables are plugged into a 2-port wall charger for a phone. I would like to use a 2x female to 1x male adapter to join the two USB cables into one, then plug it into a much smaller 1-port USB wall charger. The reason is due to my space constraints.

Will doing this impact its energy efficiency, ie using an adapter like this?

https://www.aliexpress.com/item/1005004340044483.html

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[–] totallynotarobot@lemmy.world 1 points 1 year ago

Wow awesome, thank you for the info and resources! I have to follow the links later but I really appreciate the reply.

I don’t think OP’s strips have pixel control since in my experience you wouldn’t have a separate USB power line that bypasses the controller like OP is describing, but now am curious and hope they follow up.