The Sunforce 11240 1000-Watt Pro Series Pure Sine Wave Inverter converts DC power into clean, stable AC power that is ideal for running home appliances, pumps, and motors. It provides 2000 Watts of peak surge power to get your gear started, and 1000 Watts of continuous power to keep it running. Pure Sine Wave inversion guarantees optimum compatibility with sensitive equipment, computers, motors, televisions and more. Compact and portable, this inverter is perfect for use at worksites, on boats, or for permanent use in a solar power setup.
 Sunforce Power Inverters can provide clean, free power
as part of a solar power setup. | Safe, Clean and Reliable Power--Right Where You Need It
Sunforce Pro Series Pure Sine Wave Inverters stay safe, quiet and cool while providing clean, stable power. They convert the energy stored in 12-Volt batteries or other DC power sources into the AC electrical power that many home appliances and tools need. The Sunforce 1000-Watt Pro Series Pure Sine Wave Inverter is an ideal solution for use in solar power applications, or for power failure emergencies.
Weighing only 11 pounds, this unit is compact, portable and can be easily installed right where you need it. It is equipped with two 110-Volt household electrical outlets, and provides 1000-Watts of continuous power with 2000 Watts of surge power capability. The Sunforce 1000-Watt Pro Series Pure Sine Wave Inverter is so advanced that it is patented, and includes numerous safety features to keep you and your gear safe. It comes equipped with an audible overload alarm with LED light, a high-speed cooling fan, and a soft-start system. The unit will automatically shut down in the event of short-circuits, low battery power, DC input voltage overload, output overload, or excessive temperature. It even comes with a remote control modular connector cable and key-chain remote for your convenience.
A Key Component of Solar Power Systems
A power inverter changes the DC power stored in 12-Volt batteries into AC power, which is the same kind of power used in your home. The inverter is attached to one or several batteries, which serve as your power source. The devices that you want to run are then plugged into the outlets on the front of the inverter. An extension cord can be used for devices that are located farther away. Once set up, simply turn on the inverter and then turn on each device.
The attached batteries will discharge as the inverter draws power from them, and will need to be periodically recharged. Solar power is one of the most convenient and cleanest ways to recharge 12-Volt batteries. With a solar power setup, you can generate free power anywhere the sun shines--even in remote locations. Once connected to solar panels and a charge controller, your batteries will be automatically recharged by sunlight and will provide the inverter with clean, renewable power for your equipment.
 A Pure Sine Wave helps your equipment run safely and efficiently. | Better Technology Keeps Your Components Safe
Some power inverters use a modified sine wave instead of a pure sine wave. This modified power wave is not exactly the same as electricity from the power grid, and appears as a choppy squared-off wave when viewed through an oscilloscope. The voltage fluctuates with this type of inverter and may cause difficulties running sensitive electronic equipment. You may notice that digital clocks lose time, the picture appears wavy on screens, and motors run roughly; these are indications that you require a pure sine wave inverter.
A pure sine wave inverter most closely matches the regular AC power that comes from your electric company. The Sunforce 1000-Watt Pro Series Pure Sine Wave Inverter provides clean power with very low harmonic distortion, and no static or humming noise. This allows for a clearer picture on televisions and monitors, and less static or noise in audio systems. Motors and pumps run more efficiently, quietly and will produce less heat. Pure sine wave inverters are also ideal for computers, laptops, printers, faxes, HDTVs and electronic game systems.
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 good! best bang for the buck! |
| Review Date: January 26, 2009 |
| Reviewer: Matthew P. Schulte, Missouri USA |
Bought this off Amazon a month or two ago. I was looking for an inexpensive pure sine wave inverter to replace my Duracell (Xantrex) modified sine wave inverter. I was expecting to have issues from the get go (due to the cheap price!) but this inverter is working out quite nicely. I have it hooked up to 4 Trojan T-105 batteries which is charged up with an 85 watt Kyocera solar panel and Xantrex C35 charge controller.
Being pure sine wave, I can run anything now that my old modified sine couldn't. No more annoying buzzing sounds from CFL's or TV's. certain appliances that wouldn't power up on the old inverter now work flawlessly. Some things I run on the Sunforce: Samsung 22" LCD TV, CFL's of all sizes, Playstation 2, battery chargers, laptops, electric cooler.
I haven't tripped the over current protection yet at all, not even when using items that typically surge, such as a large power drill.
No fan issues like the other review mentioned.. in fact I haven't heard it come on at all yet; then again it's winter time here in Missouri so I assume it truly is thermal controlled.
The remote keychain that was provided with the unit works great. Since I'm doing the electrical work on our new cabin, I can turn off and on when working on the electrical. Then turn it off when we leave for the week.
The only issue I've had so far is once I came back on the weekend and the inverter turned itself back on sometime during the week. This normally wouldn't be a big issue except we're limited on battery capacity and can be a nuisance if kept happening. This has only happened the one time so no biggie.
The LCD readout on the front of the inverter is a nice feature, more expensive inverters don't have this by default, though I rarely look at it.
I would like to determine how much power the inverter uses when it's powered on and in idle mode. The documentation doesn't mention this anywhere and would expect that would be a major selling point. (or, disadvantage if it's too much of a power draw). I don't have an amp meter to test what it is, if you find out please post a review.
The only other downsides is:
1) this inverter has no permanent mounting brackets. only rubber feet on the bottom. luckily the thick DC cabling keeps it well secured within the battery box.
2) the DC hookups are HAND TIGHTEN only. This can be an issue if you, like me, use the proper gauge wiring. in my case I'm using 6 gauge, which is actually borderline of being too small but the batteries are close by. I ended up using pliers to tighten the hand lugs. With thicker wiring, I imagine this would be a huge pain.
PROS:
inexpensive! I noticed the price just went up though :(
LCD readout on front panel
Keychain remote, I haven't seen any other inverters include this with the inverter itself
CONS:
no mounting brackets? I'm sure you could finagle some aluminum straps around it, instead.
hand tightened DC connections
no mention of idle power usage. |
1000W Sinewave Inverter
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| Review Date: July 23, 2009 |
| Reviewer: Tranquil Dude, Alaska |
| Product documentation was lacking this info, so called Sunforce and was told this inverter is 90% efficient, and has 2.5 Amp self consumption (standby.) 2.5 Amp seems like a bit much, but it's the price you pay for a budget inverter. |
NOT a full 1000W but close enough
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| Review Date: May 13, 2010 |
| Reviewer: HMMWV, santa clara, CA USA |
I have several 1000W inverters in my service trucks and thought the idea of a RF remote would be nice so I stepped away from my usual brand (Xantrex) Xantrex Technologies 806-1000 Prosine 1,000-Watt Inverter and their newer, more value conscious true sine inverter product line which is within $20 of this sunforce unit but lacks the features. This time I bought the sunforce.
First off, testing finished inverter installations, I use a 1050W load (it's a heat gun with 1000W heater and 50w blower). True, this is MORE than 1000W but all inverters have some surge capacity so it's never been a problem before. The sunforce unit's efficiency is within 1% of xantrex, requiring 114-116 AMPS at 12VDC to operate the 1050W load, however the sunforce will shutdown within 3 seconds with an output overload condition, while the xantrex units will drain the battery first.
I stepped the load down to 900W and things were fine, so I'm really going to overlook their slightly over-rated specifications on the inverter because my loads are in the 300-400W range and need clean power. Besides, the value proposition with sunforce's feature set is still there.
Another pro/con to consider is that the Xantrex units are metal cased with mounting holes, while these are plastic - that may lead you to some innovative mounting solutions, but it's not a big deal.
Neither Xantrex nor Sunforce has developed a "everything easy to read display" - my -806 model xantrex prosine comes close with a remote mountable on/off plate w/ lcd that shows volts, amps, and watts as a bargraph simultaneously. But the Xantrex LCD display is smaller than some digital watches and can't be read across the truck cab, which forces me to remote mount it. Sunforce uses BIG digits that are red LED, but it cycles through output voltage, amps, etc by pushing a button - it will only stay on one value for 1 second. The problem is unless you are pressing the button it defaults to AC volts, where battery voltage might be more useful
Sunforce did something really clever. Inverters of this power level are not easy to wire in (4' of #4 wire is about all you get to the battery before wire losses cut into your power conversion). The knobb-ish looking thing in the upper right of the product photo is a rubber cover for a high current 12VDC socket. You did all that wiring to hook this up, might as well get a cig lighter socket that shares the same big wires.
A good source of wiring is available on amazon and I've reviewed them - Cobra CPI-A4000BC AC Power Inverter AWG Cables although if you really need 1000W keep a battery within 4 feet - a second battery like the Optima Batteries 8052-161 D31M BlueTop Dual Purpose Battery optima deep cycle is a good setup as it can be mounted close to the inverter and charged from the vehicle alternator. Be sure to use a battery isolator so that your inverter can not drain the vehicles' starting battery.
If your use involves ALOT of runtime at 1000W a parallel combination of 2 D31 batteries will run longer without running the engine. For near constant use, use a 124 Amp alternator and you will need to run wires back to the vehicle power system and run the engine to provide power.
The Xantrex series will give you much more surge power - to 1500 W if needed for 30 seconds. Sunforce has created a clever product that comes with 3 remote on/off switches in the package. All inverters have some feature you may want - here it was the remote, some Xantrax models offer AC cutover to battery when an outside power source disappears. You do get alot in this model for a good price. My unit gets daily use and has not had a problem. Best advice is shop around - the old models that were $600-700 have come down to the $200-300 range. Oversize the unit for your use because all AC loads have startup surges, especially lighting loads and motors. I generally double the inverter size.
No matter what brand you end up buying, a TRUE Sinewave inverter like this will give you utility quality power. After nothing but bad experiences with pseudo-sinewave (there are lots of names for it, but NOT real sinewave) units frying expensive equipment over time. Those units are only good for incandescent lights, and even those burn out faster!
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Very Capable Pure Sinewave Inverter
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| Review Date: May 22, 2010 |
| Reviewer: J. T. Hwang, Chicago, IL |
I'm an electrical engineer and purchased this inverter to have additional backup capabilities, as I already have two marine batteries connected to a backup sump pump and wanted to run minimal equipment during power outages. Power outages aren't common, but when it happens, we typically experience about an hour long duration.
This is a decent quality, budget inverter. I do agree with other reviewers regarding the power cable connection, but it's not bad as one can use the cable lug along with the thumb nut to tighten. Some may see the need for hex nuts and use of a wrench, but this may actually be a hazard as posts are very close together (unless battery connection is made last). Regarding the fan, it is thermostatically controlled. It only comes on about when supplying over 500W continuous load. During standby, it draws about 1 amp (12 Watts). Testing the inverter in the garage in 40 degF temp, I could not get the fan to kick on even with 750W continuous load.
Included remote switch is very convenient. More than the actual remote, I use the hard wired switch that is connected to the inverter via supplied control cable. It would have been better to include a GFCI receptacle; I have a plug in GFCI outlet for this added protection. Soft start is very convenient and can start my DeLonghi 50-pint dehumidifier that draws 900 W continuous.
I would highly recommend this inverter. It's cheap, it would supply power to light loads within the inverter rating. Just purchase #4 AWG minimum size cable. I found purchasing a automotive jumper cable to be cheaper and installing lugs in lieu of purchasing stiff THHN type cable at home supply store. I plan to use the left over of the jumper cable for connection to vehicle battery when I go camping. |
great unit for the price
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| Review Date: September 21, 2009 |
| Reviewer: M. Shipula, Neshanic, NJ |
| Great unit for the price. the remote a real plus. Runs my pellet stove with no problem. |
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