SHNITPWR AC to DC Converter 12V 20A 250W Power Supply 110V to 12V Converter AC/DC Adapter Car Cigarette Lighter Socket 100~240V AC to DC 12V 20.8A 18A Transformer for Car Refrigerator Tire Inflator

I have a portable tire compressor and needed it for a vehicle not running and unable to access via another vehicle. This worked perfectly. Plugged it in and aired up the tires. Had no issues at all. Great to have on hand.

I use this power supply as a single source for my astrophotography rig: telescope mount, windows computer/controller, astro camera, astrocamera cooler, dew heater straps, etc.Most of the time the combined loads is 3-5 amps, though with everything maxed out, it might be 10-12 amps (though my cooler has never gone higher than 60% power, and being summer, I've not needed dew straps). So the 20 amps gives me some safety margin for the worst case, though to date I've not exceeded 6 amps.I run this through a Pegasus power box which means I can monitor the power load and delivered voltage in real time. The power supply delivers 13.1 volts most of the time, which is perfect for this application (most astro gear is happy up to at least 13.8v, and never wants to fall below 11.5v). I've seen it drop to 12.8v when the camera cooler kicks in, then recover to 13.1 within a few seconds. While there is a cooling fan in the power supply that kicks on when the draw exceeds 8 amps, I've never heard it turn on.

Christmas, I got a GPs fish finder and will not install it until spring. I needed to check it before the return period ended. This worked well. My son an Apple Play for his car that plugged into the lighter. He could test it with this.

My inverter/converter took a dump on me after 10 years of owning it and ended up buying this and works great! Used it for the first time the other day and didn’t let me down. I have a GMG Davey Crockett

I use an emergency lightbar when helping folks out on the side of the road. My 2023 Silverado had NO cig adapter. It did have a few 120 outlets and this has worked beautifully. I'm not experiencing heat issues like some, but it is quite chilly (42F/5C)I'll update as I continue to test but out of the box, it was worth it

This worked for my air compressor. No more using my jumper (which burned out) or my car.Thanks!

I purchased this to power an air mattress pump that is rated at 12v/8a. This power supply is rated at 12v/10a. Those 2 amps should be plenty of overhead but when I tried to use the pump the power supply just pulses. It tries to power up for about a half second then goes dark for another half second and just keeps repeating that cycle. Obviously it isnt powerful enough to push 8 amps much less the 10 amps it is supposedly rated. JUNK!

I bought a 12v automatic SUP pump for airing up my paddleboard and other flotation devices. The pump didn't come with an AC adapter for using at home, so I bought this one.It's probably larger than what I really need, but it works well for the task at hand.

Works perfect for my 12 volt sewage pump, it draws 12 amps so this 15 amp is perfect. Make sure of your equipment draw before purchasing these, the more amps they support the pricier, don't skimp out.

Ordered and came quickly. Did the job for our Coleman cooler

works fine for our igloo cooler

This unit is nice and small not big and bulky doesn't take up much place. Powers my two-way radio with no problems.

Exactly as described. Runs my 8kw diesel heater perfectly.