Whistler XP1200I

1,200 Watt High Surge Power Inverter


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This item has been discontinued

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General Features:

  • High Surge Portable Power Inverter
  • Power Rating:
    • Peak: 1200 Watts
  • USB Port for charging of USB based devices such as iPods, iPhones, and other portable devices
  • Remote-control ready thermostat controlled fan keeps the inverter from overheating
  • Overload indicator
  • Digital volt/watt meter mountable
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Inverter Connections:

  • 3 AC Outlets
  • 1 USB Port

Product Specifications:

  • Maximum Continuous Power: 1200 Watts
  • AC Receptacle: Three North American 3 Prong
  • Electronic circuit protection
  • 120A power requirement ground fault sensing
  • Color: Black

General Features

Type of Inverter
This is the way in which the power inverter will convert the power.

AC to DC: Converts common household AC power to DC Power.

DC to AC: Converts DC power to the common household AC power. Often times these converters can be plugged into the vehicles cigarette lighter.

DC to AC
Maximum Power Output
This is the maximum amount of power that the unit will produce at a given time. Usually this is not the amount of power that is continuously being produced.
1200 watts
Continuous Power Output
This is the average amount of power that the unit will produce. If you have specific needs, it is more effective to consider the RMS power output rather than the max power output. Continuous power output is also referred to as a RMS power rating.
1200 watts
Number of Power Outlets
This is the total number of outlets that the power inverter, power strip, or other power device has.
USB Port
This means that the item has a USB port. The port can be used to provide the unit with updates or to transfer data on to it.
Fan Cooled
A great feature to have if a power inverter generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the inverter from overheating (burning).

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating



Verified Purchase
A bit weaker than advertised, but still good

November 29, 2015

I tested this XP1200i model using ~3ft long true 4awg full OFC power and ground wires to my vehicle. I first want to note that the bolt and nut on the inverter's negative input stripped out a bit on the very first use. It's not terrible, but the ring terminal I used isn't 100% tight. More like 85%. Has a tiny wiggle if you rip on it, which I know is not desirable. Rest assured I was NOT wrenching down hard on it or something either. It's just cheap. I would have liked to see more stout bolts/nuts there. I fired up the car, plugged in an expensive 50ft true 12awg extension cord, and then plugged in the full size refrigerator in my house. I flipped the switch on the inverter and presto. Perfect. Works like a champ and fridge fired right up. The little LCD screen started alternating between voltage and, I guess, wattage being drawn? There's no mention of the LCD screen in the owner's manual for me to go off of. The displayed wattage was 990 watts. I opened the door to the fridge and the light turned on. The LCD display now shows 1030 watts. Seems high, but at least it's working. After a minute, it just started displaying all zeros. Alternating between the voltage and "0000". The fridge was still running and the light was on, but zeros on display. Just out of curiosity, I unplugged the fridge and plugged it back in. The fridge fired right back up and the LCD screen went back to displaying 990 again. After about 1 minute, it was back to 0000 (but again, fridge still works). No clue what's up with that. But just for fun, I plugged my Kill-a-Watt power meter inline the fridge to measure the actual wattage being drawn. It was FAR lower than 990, as many of you might have guessed. Less than half that. So maybe that number isn't wattage? But what else could it possibly be? At any rate, the product worked for me. I was able to run a full size fridge/freezer off the 1200W model. To me, that was the test, as I know that ain't easy for a small inverter. I'm happy and I'm keeping it. At the same time, I know how these inverters can be.... so I purchased the 3yr SquareTrade warranty just in case. haha

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Whistler XP1200I

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Whistler XP1200I

1,200 Watt High Surge Power Inverter


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