Power Bright PW1100-12 Power Inverter 1100 Watt 12 Volt DC To 110 Volt AC

I bought this to handle several AC devices at one time and it has never let me down.

PROS:

durable construction

quiet = fan only comes on when unit gets warm after initial power up

LED display of watts being used or battery volts remaining. Very cool.

CONS:

power cables from battery clamps to unit are stiff and brittle. You can buy upgraded "ultra flexible" ones but IMHO they should ship with that.

Get this...you won't be sorry :-)

We use this inverter in a storm shelter here in West Texas. It is connected to a automotive battery. Have a Battery Tender on the battery to keep it charged. In a tornado the inverter will provide power to the shelter for TV, radio, lights and a fan. Tests of the system have been perfect. The inverter has good connections for plugging it in and for clamping it to the battery. Like the front display showing stats.

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I really shouldn't complain. I mean with the cost of this thing its hard to be unhappy. The product works. I am sucking 1100w peak at startup and 880-900w @ 10.8-11v continuous. My big issue is @ 75f the inverter shuts down after 6 1/2 minutes. I thought maybe the batteries i have may be faulty, but no, they still pass load tests after shutdown. Problem is, if the inverter is used anywhere near continuous rating, it gets super hot and shuts down. I can let it cool a few minutes and it works again,but only after flipping the switch on and off. The green light comes back on and the thing stops beeping and flashing its red light but wont power the load until the unit is turned off, then back on. This will be annoying at best. I have 350Ah of battery capacity because i need to use my vacuum for 30-45 minutes, @ 80A draw. Now i will have to periodically wait for the inverter to shut down every 6-7 minutes and find something productive to do. Also, the inverter is VERY light. I knew i had a problem as soon as i took it out of the box.

So, case in point; If you need this to run high wattage load for very short periods of time it appears to be the best value inverter in this wattage range. But, if you need to use it to make money like me, it will more then likely lead to some embarrassing outbursts and wasted productivity. I will be re purposing this inverter for another project and replacing it with a commercial unit like i should have purchased in the first place. "You get what you pay for" -once again my grandmothers infinite wisdom lives on.

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It works all right for what it is. Based on the claim that it is great for electronics/etc. and all of the reviews that say it is quiet, I was thinking this is a pure sine wave inverter. Electronics need pure sine waves for reliable performance, correct time keeping, etc. and I assumed (yeah, I know the saying) that being advertised as "perfect" for electronics, that it would be pure.

It is not a pure sine wave inverter; the box (not pictured) says modified sine wave and the description did not say either way. The inverter itself does not say if it is pure or modified sine wave anywhere that I noticed.

I should have known it was modified sine wave by the $80 price tag for such a high wattage rating. Pure sine wave inverters are 2-3 times as expensive.

I tried it anyway, installing it in a camper travel trailer with proper grounding and it does supply power and the inverter itself runs quietly.

I hooked the trailer's external power cord into the inverter (running off of a Trojan battery bank) and it does send enough electricity to run the refrigerator and lights and objects plugged into outlets all at the same time. My battery monitor said it was pulling about 25 amps or so, and the Inverter showed roughly 300 watts being used.

The problem is that the modified sine waves cause my electrical system and items I plug in to buzz. The lights buzz quietly, the fridge a little bit louder, and a fan I plugged in started buzzing loudly and the reciprocating motor started twitching the fan so it moved a little even when turned off. None of these behaviors happen when plugged into a power cord coming from a house's external power outlet.

There are two causes for buzzing electricity that I have found in my Internet searches: improper grounding, or if it's properly grounded, the modified sine wave. I haven't tried hooking a TV and an XBox 360 up to it just in case.

It's big enough to look sturdy and capable, but small enough that I installed it in a 19" toolbox from Wal-Mart to make it portable, running the wires out holes I cut in the side of the box.

I did get the big 4 Gauge Inverter wire kit Cobra CPI-A4000BC 4-AWG Heavy-Duty AC Power Inverter Cable Kit Amazon recommended. (Red and black 4 gauge power wires, green 6 gauge grounding wire, and a couple of ring terminals for customizing the length of the 4 gauge wires.) You really do need those specialized wires to make this work for a permanent/semi-permanent installation. The kit is cheaper than buying the same wires and ends at Home Depot.

The wires that come with the Inverter are 2 Feet long, about 8 gaugish, and have alligator clamps on one end. You can quickly hook it to a battery and get some juice for a short term job with those, but the instructions say the ground wire (included in Cobra's kit, but not with the inverter) is required for installation.

I haven't tried it with power tools yet, but that might be a place where I wouldn't notice buzzing if there is any.

Based on the fact that it makes every 110 AC item in my trailer buzz when I use it, I'm going to have to spring for a pure sine wave inverter and either sell this one or find something it doesn't cause to buzz to work with.

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I installed this in my travel trailer to run a tv/dvd, small microwave and computers. it works great, it dont get hot or make any weird noises and its pretty well built. I was a little worried about a converter because I've heard horror stories about them catching fire, but after having this one run for a while with no issues, no worries. i recommend this converter

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