this post was submitted on 19 Jul 2023
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I know it’s the old round pin we used for phones back in the day but can someone send me a link to the exact one because I’m seeing too many round pin charges of different sizes. Also where do I go for tech help related questions like these? Is this the right community?

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[–] S3mI@lemmy.world 27 points 1 year ago (2 children)

Looks like a barrel plug. These are very common and finding s as replacement should be easy. On the underside of the lamp there will be writing that says what the electricity requirements are. e.g. 12V—-400mA Look up a replacement using those numbers.

[–] zoobiedoobie@lemmy.world 7 points 1 year ago* (last edited 1 year ago) (2 children)

It doesn’t say anything on the lamp but I think I can find that on the amazon listing. Thanks

[–] LemmyFeed@lemmy.world 7 points 1 year ago (1 children)

If you know the lamp model number or manufacturer or anything like that you could possibly find the specs online somewhere. I think they also sell some "universal" type barrel plug power supplies that come with various sized barrel connectors.

[–] andrew@lemmy.stuart.fun 6 points 1 year ago* (last edited 1 year ago) (1 children)

Ah yes, you must mean the biblically accurate universal barrel plug adapter.

Edit: I had something like this guy growing up and used to use it to make sparks and other shenanigans.

[–] fubo@lemmy.world 5 points 1 year ago (1 children)

Edit: I had something like this guy growing up and used to use it to make sparks and other shenanigans.

What utter goofball was it who ever built a device with reversed polarity?

[–] Aux@lemmy.world 4 points 1 year ago

Some Chinese devices come with reverse polarity.

[–] Sleepkever@lemm.ee 5 points 1 year ago

One thing to remember is that the Voltage needs to be exact, but the supplied Amperage can be equal or higher then the original power supply.

So if you are trying to replace an originally 12v 400mA power supply you can also go with a 12v 500mA or 1A (1000mA) power supply. But 12V 200mA probably won't work and for example 19V 400mA might outright destroy your device.