[SOLVED] Can i reduce output of PSU?

[mmzf]

I use psu to run a air cooler which runs at 12v dc. and i somehow check my psu voltage with help of an electrician (he was having volt meter) the reading was 14 vdc. I run that cooler in morning with a solar panel, of 180w which runs perfect! it is of like 19.4-19.5vdc. But on psu it runs 2-3x faster, which kinda looks dangerous of damage to cooler and person sitting in front because fan could break due to high speed. What should i do to reduce power of psu?

 

[lvt]

You can use a manual controller like this:

https://www.coolerguys.com/products/12v-dc-5amp-molex-to-3pin-manual-pwm-fan-controller

 

[Ralston18]

Air cooler: make, model, specs?

If the air cooler runs perfect on 14 volts/180 watts via solar then the air cooler is probably designed accordingly.

What is the source of the 19.4-19.5 voltage?

Air cooler power specs/requirements?

= = = =

Make and model PSU?

PSUs provide 12 volts.

Overall, the PSU is unable to provide the power being demanded by the air cooler.

You do not want to "reduce the power" of the PSU.

You want to find a power source that will properly power the air cooler.

 

[jonnyguru]

I use psu to run a air cooler which runs at 12v dc. and i somehow check my psu voltage with help of an electrician (he was having volt meter) the reading was 14 vdc. I run that cooler in morning with a solar panel, of 180w which runs perfect! it is of like 19.4-19.5vdc. But on psu it runs 2-3x faster, which kinda looks dangerous of damage to cooler and person sitting in front because fan could break due to high speed. What should i do to reduce power of psu?

You're using a PSU meant for PCs to run a cooler? If it's a PC power supply and it's outputting 14V, it's probably an old, cheap group regulated unit with most of the power on the +5V. So if you crossload it with a +12V only load, the +12 goes out of spec.

Would be good to know what PSU you are using.