4 Year Asurion Home Improvement Extended Protection Planfrom Asurion, LLC
- Covers mechanical and electrical breakdowns.
- No deductibles or hidden fees. Free shipping on all repairs. Fully transferable.
- Easy claims process online or by phone 24/7. If we can't fix it, we will send you an Amazon e-Card for full replacement value.
- Coverage begins at the end of the manufacturer's warranty. Plan is fully refunded if canceled within 30 days.
- Plan contract will be emailed from Asurion within 48 hours of purchase. This will not ship with your product.
iMeshbean® 12V 300W 300 Watt Micro Grid Tie Power Inverter Solar MPPT Expedited Shipping USA Seller
|Price:||$92.99 + $4.99 shipping|
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- Normal AC Output Power:250W; Maximum AC Output Power:300W
- AC Output Voltage Range: 90V ~ 130V; DC Input Voltage Range: 10.8V ~ 30V; Total Harmonic Distortion(THD):<5%; Power Factor: 0.99
- AC Output Frequency Range: 46Hz ~ 65Hz. Peak Inverter Efficiency: 92%; Output Current Waveform:Pure Sine-wave; Standby Power consumption:<0.5W
- Features:MPPT Function/Over Current Protection/Over Temperature Protection/Reverse Polarity Protection/Island Protection/Stackable
- Package Includes: Power inverter and Power cord
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More Models are available
SUN-250G: B004TVEF8Y, Wind-250G: B008BDAQDY
Wind-300G (10.8V ~ 30VAC): B007WQBK2C,Wind-300G (10.8V ~ 30VDC): B005N2OLZU
Sun-500G: B008CNM1SQ, Sun-S500G-HI: B005N29SGM
Wind-500G (10.8V ~ 30VAC): B007WQDKMA, Wind-500G-HI (22V ~ 60VAC): B007X0L2C0
Wind-500G (10.8V ~ 30VDC): B005N2ST9E, Wind-500G (22V ~ 60VDC): B007X0OVGO
Sun-600G: B007XAEINU, Sun-600G –HI (10.8V ~ 30VDC): B005N2VLO4
Sun-1000G-HI (10.8V ~ 30VDC): B007XAP0V4
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The only plug and play small grid tie photovoltaic system;The stackable small grid tie photovoltaic system
Normal AC Output Power: 250W
Maximum AC Output Power: 300W
AC Output Voltage Range: 90V ~ 130V
AC Output Frequency Range: 46Hz ~ 65Hz
Total Harmonic Distortion(THD): <5%Power Factor: 0.99
DC Input Voltage Range: 10.8V ~ 30V
Peak Inverter Efficiency: 92%
Standby Power consumption: <0.5WOutput Current Waveform: Pure Sine-wave
MPPT Function: Yes
Over Current Protection: Yes
Over Temperature Protection: Yes
Reverse Polarity Protection: Yes
Island Protection: Yes
Package Includes：Power inverter and Power cord
Operating Temperature Range: -10 ~ 45 centigrade
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This really is a great product !
- The best efficiency I've measured is about 80-85%, not the 90%+ listed in the spec
- Running 2 100W panels in parallel on a single inverter nets me about 125~130W output
- Running 1 100W panel by itself on each GTI nets me about 70W each or total of 135~140W combined
- Repeated measurements over varying sunlight conditions show me these units run most efficiently when they only have a single panel attached to them.
Just a heads up to avoid disappointment! My panels are spec'd at 100W each in 25C ambient lab conditions; in reality it's less due to temperature derating. At midday in June, I was measuring the backside of my panels to run about 55C. With a 0.5%/C derating above 25C ambient, the panels can theoretically put out only 85W. Considering the GTI efficiency to be about 80-85%, max power from my panels is only about 70% of the panel rating, best case. In my 200W panel setup, I can only expect to get at best about 140W, tops in the middle of the summer. Most of the time, I see 130-135W more than I see 140W
I opened my SUN300G and compared its innards to pictures of the SUN250G. Both look identical and I'm not sure what the difference really is. There is a single 35V, 4700uF aluminum electrolytic capacitor for filtering on the front; it seems to be a bit undersized and underrated. I see over 2-3VRMS of 120Hz AC ripple on the input when I'm running both 100W panels in parallel, and it probably explains why the cap runs warm (not good for longevity) I attached a single 1000uF cap on the terminal lugs and it brings the ripple down a bit while squeezing about an extra couple watts out of it. Ironically, a 10000uF cap cleaned up the input ripple quite a bit more, but it yielded about 4-5W less output. I surmise the MPPT is measuring peak input voltage rather than an average DC input.
If I was to do it again (I probably will), I'd probably buy the SUN250G and attach a single panel to each since the biggest 12V panels don't come in anything much beyond 150W.
[update 4/25/14-- I have been running 4x 100W panels on 2 SUN300G inverters. I'm getting about a typical 240-260W maximum post AC-conversion at noon. The highest I've seen was about 280-290W on a cold, clear day in March. With the panels in a fixed position (non-tracking), I'm averaging about 1.5KWH going into the house mains on a cloudless, sunny day here at 37degrees latitude. Assuming $0.16/KWH, I'm generating myself about $0.24 of power a day. It'll be a while before I break even. LOL ]
[update 5/15/15 -- Still working flawlessly! Since I've got these mounted under the panels outside in the backyard and not really 100% weatherproofed enclosure, the purple sticker on top of the unit is a bit faded and wrinkled. Ugly but no big deal. I think one of the unit's fan bearings are starting to make some noise]
I only gave this unit 4 stars, as I was a little disappointed that it would only produce 130Watts with a 12v input. I suspect that If you want to get the full 300 watts out, you would need to supply it with the 30v it's spec'd for.