Power Supply Adapter DC 12V 20A 250W Transformer Switch AC 110V / 220V to DC 12V 20amp Switching Converter LED Driver for LED Strip Light CCTV Camera Security System Radio,Computer Project,3D Printer

Purchased as part of a TIG Cooler build to run the pump and fans. Specifically selected because it has way more power output than needed so we're not overtaxing it and because it is switchable between 110 and 220. It is setup to run off of the welders dedicated 220 output plug for a cooler and works great.The pump and fans never sound like they are taxed due to low power input. The power supply runs cool and is SO QUITE. When checked with a multi meter voltage and current outputs are stable and consistent.I expect a long life out of the unit and it was a great price in my opinion for what I got.

I overloaded my 20 year old power supply for my low voltage landscape lights and was surprised to find that its hard to find a 12v dc low voltage landscape power supply that would support 80-100 output watts. Apparently the advertised 120 watt systems are actually 2 60 watt supplies which wouldn't work for me. I found this system which works great! My power supply is in the basement so weather is no problem. I'm running 80 watts plus wiring and could easily add a second 60 watt system I have if/when it should fail. The power supples for low voltage ladscape systems are very expensive (timers, water proof, etc.) If its not in the weather, this is the way to go. For a timer, I use a mechanical timer on my ac feed.**** Followup - the power supply failed after 4 months. I contacted the seller and received a new replacement in a couple of days - very good warranty coverage!

It does what it’s supposed to and good value for the money.

The unit fan is a bit loud but it keeps supply cool!.I had no trouble adjusting output anywhere between 11 and 15 VDC Using pot on unit. Be aware there is no cord included to plug in to AC supply outlet. Unit comes with 110VAC selected if you are outside the U.S.A. you will likely need to switch it to 220VAC input At selector switch on the side.Unit arrived undamaged despite poor packaging and works well so far! Seems to be a good unit for the low price and easy to install

I wasn’t sure if this would handle the amp I was hooking it up to. It’s an old sub amp. I forget the wattage but I want to say it’s around 300w to a 4 ohm load. Anyway so far the supply has kept up for limited use. I purchased a 2nd one to use for the head unit which was probably overkill but for the price it’s hard to beat. Currently I’m loving them for their use. We will see how they last.

Used this to power about 28ft of warm white Leds inside my garage NewAge steel cabinets. The first one (with Red lettering on the label) lasted about 2 years up untill it just stopped. The fan on this one ran 24/7 without being able to turn it off. I messaged the seller about it no longer working and they sent out a replacement without hesitation and received it 2 days later. The new one (all black lettering on the label) works great and the fan now only runs when I have the lights on and turns itself off when the lights are off. So much better! Thanks for your help, Tommy.

I rarely return things to Amazon but this one is going back. It arrived with no documentation--it was just the power supply in a box marked "made in China." The unit had no labeling for specifications or connections other than some weakly stamped symbols near the unmarked terminal strip. So out of the box it was not very impressive.I connected a 60 watt test load (an incandescent bulb) to the 20A unit and it seemed to work ok. But with a meter and scope I could see that the voltage varied from about 8 to a bit over 12. The changes were usually abrupt, but sometimes the voltage would drift between 10 and 12 over a 5 second period. My application requires a regulated voltage, so I can't use this power supply. I didn't test it at a higher load.I was also disappointed with the build quality. The case/frame is very lightweight aluminum that flexes easily. I see some thin insulation under the circuit board to hopefully prevent the solder contacts from touching the case. The small mounting flanges built into the frame are very flimsy, as if they would break off easily. This is not a robust device.There is also no UL listing even though the search I did on Amazon included UL Listed. The description on Amazon doesn't mention UL, so I can't say it was inaccurate. But a device like this that will be used in an unattended and potentially enclosed space should be UL listed, or have some other equivalent certification.There is nothing to recommend about this power supply other than its low cost. Buyer beware.

Noisey fan and fan not thermostatically controlled , but needs to be for the work we do

Me llego en tiempo y forma, lo estoy utilizando para la alimentacion de un amplificador de 400 watts y un restaurador de bajo que se conctaron en paralelo a la fuente y no ha dado ningun problema, ha funcionado a la perfecccion, la conexion que realice la he utilizado por horas y la fuente ni siquiera se calienta (la cual trae abanico integrado).En conclusion es un excelente producto a un buen precio.Como consejo revisen el consumo de los aparatos en amperaje y voltaje antes de seleccionar una fuente, de poder, de eso depende el funcionamiento correcto de la fuente.

Funciona muy bien me da los watts que indican al precio que esta no le pide a otras fuentes de marca lo recomiendo aparte el ventilador muy apenas se alcanza a percibir

La fuente funciona a la perfección, la instalación fué sencilla ya que vienen marcados los positivos y négativos, así cómo las coexiones de la corriente alterna.

La conseguí a un precio difícil de igualar ya que fuentes de especificaciones similares estan alrededor de $700 a $1,000 MXN tiene especificación OCP, Short Circuit Protection y el tamaño adecuado que estaba buscando para el proyecto de fuente variable para un brazo robótico que estoy desarrollando su wattage me permitio agregar otros servicios en el módulo y combinado con DC-DC Buck Booster es una ganga que aprovechar, habrá que estar al tanto de su desempeño aunque realmente no pienso alcanzar los 30 A de salida

Buena la potencia y estabilidad de Amperaje para conectar en casa mi equipo de sonido de mi auto.