Electronics > Projects, Designs, and Technical Stuff
Chinese ac adapters on eBay
beanflying:
Depending on YOUR local regulations and not the advice of others from around the world make sure your ass is covered if YOU are doing the importing of mains anything to sell or for others to use. It only takes one thing to go wrong and you can be in a world of legal hurt.
In Oz for example selling a non compliant wallwart/supply of any sort and generally all states require them tested prior to sale. This simply doesn't happen and garbage is being sold online or via $2 shops or even major retailers in some cases. :palm:
Digikey, Mouser, E14 etc won't in our case have the paperwork and testing done. So technically using supplies from them puts the seller of them at risk in spite of maybe meeting US or EU standards.
Find a local company that meets your regulations and do it right. If it is just for yourself then play safe and enjoy and use whatever you want ;)
Prehistoricman:
--- Quote from: Alex Eisenhut on February 08, 2020, 05:31:43 pm ---that thing just works, but now I would like to find a 20-30V DC adapter to power *that* thing.
--- End quote ---
Generic laptop chargers are 19V and you should be able to get them in various power ratings.
As for finding good quality ones... maybe known brands on the second hand market? Apple laptop chargers also work in this voltage range.
janoc:
--- Quote from: beanflying on February 09, 2020, 06:19:27 am ---Depending on YOUR local regulations and not the advice of others from around the world make sure your ass is covered if YOU are doing the importing of mains anything to sell or for others to use. It only takes one thing to go wrong and you can be in a world of legal hurt.
In Oz for example selling a non compliant wallwart/supply of any sort and generally all states require them tested prior to sale. This simply doesn't happen and garbage is being sold online or via $2 shops or even major retailers in some cases. :palm:
Digikey, Mouser, E14 etc won't in our case have the paperwork and testing done. So technically using supplies from them puts the seller of them at risk in spite of maybe meeting US or EU standards.
Find a local company that meets your regulations and do it right. If it is just for yourself then play safe and enjoy and use whatever you want ;)
--- End quote ---
Don't Oz authorities recognize e.g. FCC, CE or UL testing when approving stuff for sale? I can't imagine someone like Mouser selling stuff in Oz that isn't legal there or that they don't have the paperwork in order. If nothing else they have to ensure the plugs are correct already, given that they are different from every other major market. Of course, that assumes you are ordering from a local subsidiary (e.g. Mouser Australia, if there is one), not directly from the US. If you couldn't rely on a vendor like that then there is nothing you could do at all, except getting a supply certified yourself (good luck with that ...).
That major retailers (not specialists like Mouser or Digikey) sell dangerous crap that they got from some fly-by-night importer somewhere is another matter - that is common even here in France where you can find literal deathtraps being sold in Fnac, Carrefour and similar places, sometimes even without the CE markings (which is flat out illegal, regardless of how meaningless that marking is).
The advice to "find a local company that meets your regulations and do it right." is pretty useless, IMO, because I can't imagine he will be ordering custom made power supplies from some local outfit and having them certified, unless he is going to sell hundreds of pieces. Or rely on some local mom & pop vendor - who is importing the same junk from China as the mall down the road, because they don't have anywhere else where to get it from anyway.
Alex Eisenhut:
Yeah looks like my little eBay adventures end here. I spent more on buying garbage overall. |O
edit: I think I figured it out. 5V 2A on a Chinese adapter means 5 volts XOR 2 amps.
nigelwright7557:
I bought in 4 Chinese 12V 2amp supplies.
With 500mA load none lasted more than a few days.
So bought some from CPC (part of Farnell) and they were great.
Old story, buy from a reputable dealer and you will most likely have no problems.
Save a penny, lose a pound !
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