Whistler Pro-400W 400 Watt Power Inverter (Older Model)
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- Enter your model number to make sure this fits.
- Features 2 AC Outlets and 1 USB Port.
- Cooling Fan.
- High Surge / Ground Fault Sensing
- 400 Watts Continuous power - 800 Watts Surge Capacity (Peak Power)
- For safety, features five separate points of Electronic Circuit Protection.
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|Enclosure||Please fill in Unit Size|
|Item Dimensions||4 x 8.5 x 9.5 inches|
|Item Weight||1.05 pounds|
|Manufacturer Part Number||PRO400W|
|Manufacturer Warranty Description||Comes with Manufacturer Warranty.|
|Shipping Weight||1.65 pounds|
|Style Name||400 Watt|
Top Customer Reviews
I'm writing this review mainly becasue I feel like the rating is skewed. One reviewer claimed he blew all the fuses in his 2012 Silverado because of this inverter, and gave it 1 star. He said none of the fuses were blown in the unit, so obviously the unit was at fault. However, the unit is rated for higher wattage than his cigarette adapter socket is. If you are using the cigarette adapter, you should not attempt to pull more than 150w off of ANY inverter. This has nothing to do with your inverter, and everything to do with the wiring in your car, which is not designed to handle the same load this inverter can. It is most likely that the reviewer was not aware of this limitation, and threw out a perfectly good inverter.
Another reviewer gave the unit 2 stars, after admitting that he had a bad alternator in an older vehicle (and it worked fine until his alternator went out).
Yet another gave 1 star because the minimum operating voltage is stated in the manual as 11v +/- 0.5 volts, which could mean the device might not run on 11.5 volts (or maybe 10.5). Well, your alternator should be putting out more than 14 volts when your car is running, and your battery, when charged, should be over 13. If your battery voltage drops below 11.5 volts at idle, you have bigger problems.Read more ›
That said, when we got it, initially I thought it was broken. It immediately started throwing out beeps and lights, which indicated it wasn't getting enough power. I thought this was strange, and was getting ready to send it back to Amazon as I figured I got a bum unit. Well.. just because the car battery was so old, I had it tested. Sure enough, the car's battery was at death's door and needed to be replaced. I put a new battery in the car, and had no problems from that point on. Looking forward to using this inverter for many years to come.
One last thing - unless you're using a very small, very low power device, use the included alligator clips and hook it directly to your car's battery. Despite it being rated for 400 watts, cigarette lighters in cars only put out 150 watts max. It's a very quick way to blow a fuse.
Most Recent Customer Reviews
I've had this product for a year now and while it does have a very cheap feel to it, it has endured my heavy use of it other than the cheap cigarette adapter that most definitely... Read morePublished 3 months ago by Cause no one else leaves honest reviews
Died after 6 months with extremely light use and demand when used. No warranty or promise of adequate workmanship on the item 50 bucks down the drain. Do not purchase.Published 7 months ago by JS
When the lights went off during a storm
I used to plug my computer and keep working
The inverter has a loud fan and the USB ports didn't charge our phones, we had to use the power adapter and plug them in with the wall plugs.Published 9 months ago by Marley981
Delivered as promised, and faster than I thought. Works well, and priced right.Published 10 months ago by michael mitchell