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

Parameter Input: AC 100V~240V 50/60Hz Output Voltage: DC 12V ( constant voltage ) Output Current: Max 20.8A Output Wattage:Max 250W Output connector:Car Cigarette Lighter Socket Power cable length: 142.9ft / 363cm Adapter body size: 7.0in (L) x 3.5in (W) x 2.1in (H) Safety Compliance: FCC / CE/ RoHS / CCC Working Temperature: 0~40? Storage Temperature: -20~60? Ambient Humidity: 0~95% Non-Condensation Weight: 1.54 lb / 700g Professional advice from licensed electrician: The max use should be no more than 80% of the full loads. Otherwise, the power supply will generate much heat and its service life will be greatly shortened. We recommend you to use this 12V 20.8A 250W power supply to power devices less than 200W. kindly Note: When the load is above 300W, it will stop working and beep. When load is lower than 250W, it will work again. When load is above 660W, the built-in fuse will blow and the power converter will be permanently damaged. Package included 1x 12V 20.8A 250W power supply with car cigarette lighter socket