9+A 5V power supply?

[mfalkvidd]

I have a 5V 5m ws2812 led strip, 9W/m. Can anyone recommend a reliable power source to use for powering it? 9A is much more than the common USB chargers deliver, and a lot more than the HLK-5 is able to deliver.

I've found https://www.aliexpress.com/item/Power-Supply-Transformer-Adapter-with-DC-cable-AC100-240V-to-DC5V-2A-3A-5A-10A-20A/32715717881.html but I don't feel very comfortable trusting that it won't overheat.

An alternative might be a ~5A 230VAC->12VDC adapter and a few smaller 12VDC->5VDC adapters?

[Yveaux]

@mfalkvidd maybe an old pc power supply?

[mfalkvidd]

@Yveaux yes, that could be a good option. They tend to be a bit bulky, but the reliability is usually nice and most models seem to handle 15-20A on the 5V rail.

[hek]

Hard to say anything about quality, but the following is at least in proper casing.

https://www.aliexpress.com/item/AC-DC-LED-Switching-Power-Supply-5V-10A-Adapter-AC100-240V-to-DC5V-50W-Transformer-for/32754255352.html?spm=2114.30010308.3.25.I0CMK2&s=p&ws_ab_test=searchweb0_0,searchweb201602_2_10091_10090_10088_10089,searchweb201603_1&btsid=c1de7d92-589e-459d-8ef8-7be21d5efe40

[Nuubi]

@hek said:

Hard to say anything about quality, but the following is at least in proper casing.

https://www.aliexpress.com/item/AC-DC-LED-Switching-Power-Supply-5V-10A-Adapter-AC100-240V-to-DC5V-50W-Transformer-for/32754255352.html?spm=2114.30010308.3.25.I0CMK2&s=p&ws_ab_test=searchweb0_0,searchweb201602_2_10091_10090_10088_10089,searchweb201603_1&btsid=c1de7d92-589e-459d-8ef8-7be21d5efe40

Have bought couple of similar ones. They are veeery noisy.... just something (depending on the use case) that might require extra components to compensate.

[m26872]

I haven't looked at 5V, but when buying from Ali I prefer solid metal enclosure psu, for safety and aspects like grounding, shielding and cooling.
https://www.aliexpress.com/item/Transformer-Power-Supply-Adapter-AC110-260V-to-DC12V-24V-10W-100W-Waterproof-ip67-LED-Driver-Outdoor/32693854001.html

[AWI]

No doubt, as @Yveaux mentioned, use a (branded) sfx/ atx mini power supply. Easy 15 amps (up to 40A), reliable and efficient..

[mfalkvidd]

A friend helped me find this from a local supplier: https://www.kjell.com/se/sortiment/el-verktyg/stromforsorjning/nataggregat/ac-dc/fast-utspanning/velleman-switchat-nataggregat-5-v-(dc)-50-w-p44814

5V 10A for about 28USD in a 10x10x4cm package. Pretty neat.

[kalle]

Here are also some similar power supply and they ship really fast

https://kutop.com/catalogsearch/result/?q=power+supply