

⚡ Power your car gadgets at home—because your tools deserve the VIP treatment!
This 240V to 12V AC to DC converter delivers a heavy-duty 250W continuous power output with a 20A max current, perfect for running automotive devices like car jacks, refrigerators, and compressors directly from household outlets. Featuring a built-in cigarette lighter socket and a smart silent cooling fan, it ensures stable, quiet, and safe operation in a compact, portable form factor ideal for professionals and enthusiasts alike.






| ASIN | B09DGPY51L |
| Best Sellers Rank | 10,000 in Automotive ( See Top 100 in Automotive ) 43 in Power Inverters |
| Guaranteed software updates until | unknown |
| Item model number | KINGCAV-250 |
| Manufacturer | NANJING RUIGE DIANZI KEJI YOUXIAN GONGSI |
| Product Dimensions | 0.02 x 8.7 x 0.01 cm; 450 g |
C**E
Heavy duty good amperage output
Nice did what I needed to run a 12v compressor.
T**T
Built-in protection features for safety
The is a heavy-duty and reliable power adapter designed for devices that typically run on a car’s 12V system. With its high 30A output and 360W power capacity, it’s ideal for powering diesel heaters, car fridges, compressors, tyre inflators, and other high-demand 12V appliances right from a standard household socket. The built-in cigarette lighter socket makes it easy to plug in automotive devices without extra adapters, and the sturdy construction ensures stable, consistent power delivery. It stays cool during operation and includes built-in protection features for safety and durability. Whether for workshop use, camping gear, or powering 12V tools indoors, this transformer offers strong performance, versatility, and excellent value for anyone needing a dependable AC-to-DC power supply. I have used this to power car jacks while working in garage. Overall, it is five stars.
D**D
To help power my diesel heater
Brilliant
R**Y
20amp 12volt dc transformer
Bought this to power a diesel heater from my jackery portable power unit as it only had a10amp dc outlet. It was delivered on time and looks good. Tried it out at home before our camping trip and it works fine. It came in a plain brown box with no information booklet so the only info I have is what is on the sticker of the transformer it self. Time will tell if it lasts and will cope with up to 20amp but at £40 I hope it lasts me for quite a while
C**C
Powerful 12v adapter/transformer
This was one of the few 240v to 12v adapters that I could find that had sufficient amperage to power a portable electric winch. The cigar socket and cable were very substantial and the winch was easily able to draw sufficient power to work for a prolonged time without any sign of either the transformer or cable overheating.
C**G
Bit noisy
Works, but fan noisy for first couple of minutes, then settles down
C**R
Fan only cuts in after a while.
Good job Worried with a fan it would be running all the time but it only cuts on and out.
T**M
Useless
The item is useless &so is the company
D**I
Buon prodotto
W**I
I bought this item to power a 120Vac / 60Hz 400 watts power inverter for my hair clippers made for the American wall socket. Works very well and i get to use my hair clippers in a country with 240Vac / 50Hz mains power supply. Zero noise during operation the only indication to show that its actually ON is the green LED light at the top.
Trustpilot
1 month ago
1 day ago