260/270/280/290/300W Poly Solar Panel for Solar Light

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1000 watt
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1000000 watt/month

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Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 300 Number of Cells(pieces): 72

Product Description:

Product Description

260/270/280/290/300w solar panel/pv panel
260/270/280/290/300W Poly Solar Panel for Solar Light

1)Long Service Life;
2)High Efficency Solar Cells;
3)Special Aluminum Frame Design;
4)High Transmission,Low Iron Tempered Glass;
5)Advanced Cell Encapsulation.

Solar panel Characteristics  
1)High reliability with guaranteed +/-3% output power tolerance.
2)The modules can withstand high wind-pressure,snow loads and extreme temperatures.
3)Bypass diodes to minimize power loss with shading.
4)High and stable conversion efficiency to ensure the highest quality.

Quality and Safety  
1)25 Years limited warranty of 80% power output.
2)10 Years limited warranty of 90% output.
3)5 Years limited warranty of materials and workmanshop.
4)ISO9001:2008(Quality management system)certified factory.
5)Product quality warranty & product liability insurance to guarantee and user' benefits.
EN 6100-6-3:2007   EN 6100-3-1:2007(IEC 6100-4-2:2008     IEC 61000-4-3:2008)

1)On Grid System,Off Grid System,Hybrid Sytem.
2)Solar lighting ,lamps,household electricity,highway transportation.
3)Construction and photovoltaic power planta and so on.

The electrical Characteristics of 260,270,280,290,300 watts solar panel 

Maximum Power at ST(Pmax)W260Wp270Wp280Wp290Wp300Wp
Maximum Power Voltage(Vmp)V36/1836/1836/1836/1836/18
Maximum Power Current(Imp)A7.2/14.47.5/157.77/15.558.05/16.118.33/16.66
Open Circuit Voltage(Voc)V39.15/19.139.2/19.339.3/19.439.3/19.439.6/19.8
Short Circuit Current(Isc)A7.8/15.68.03/16.058.13/16.268.86/17.729.16/18.33
Cell Efficiency(%)15.57%16.5%16.7%16.7%18.1%
Module Efficiency(%)14.8%15.4%15.9%16.5%17.2%
Operating Temperature º C                      -40º Cto+85º C
Maximum system voltage                      1000V(IEC)DC
Power tolerance                      +/-3%
Temperature coefficients of Pmax                      -0.45%/º C
Temperature coefficiency of Voc                      -0.27%/º C
Temperature coefficiency of Isc                      0.05%/º C
Weight(kg)                      25.5
Number of cell(pcs)                      6*12
Dimensions(mm)                      1920*1000*40

Why choose our solar panel is you ideal choose?

1. The important raw material, Solar cells, come from domestic public company and Taiwan famous company. Quality assurance: 25 years long life span, Industry leading power output warranty 10 years 100%, 20 years 95%, 25 years 85%. 

There are some company which select inferior solar cells that are processed from recycled silicon material from small workshop, so their solar panel service life maybe less than 5 years because inferior solar cell power reduce much more every year.

2. Our company has automated production line for solar panel. Good technology, good quality assurance. Strong production ability: 300 pieces 300w solar panels can be manufactured per day. Most of company weld solar cell with artificial manual work. Bad manufacturing technique is difficult to keep consistency of products.

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Q:Properties of solar panel?
Q:DIY single solar panels with outlets?
Build okorder.com
Q:Solar Energy - What would these solar panels power?
60 Watt Solar Kit 60 watts not much. Max. Power*: 60 Watts Voltage at Maximum Power (Vpm): 6.7 V Current at Maximum Power (Ipm): 3.30 A 0 or 20 of them plus inverter plus battery's not real viable I think how much energy was used in the manufacture of the cells,unfortunately a long way to go
Q:Solar Panels!!???!!!?
Solar power is harnessed through solar panels. These solar panels consist of numerous solar cells. That helps in producing the electricity
Q:Cost and energy generated by solar panel?
A little more than 0 watts per square foot, so that size panel would generate 250 watts under ideal conditions, which is noon on a sunny but not too hot day, near the equator. That's about /3 horsepower, or the same power as a man working hard. That is larger than needed to keep the battery of the car charged, unless you plan to run a laptop or something off it at night. The power is also too small to power the car for driving. If it's an electric car, you could get maybe another 2 miles per day out of the car, again, under ideal conditions. An RV store might have an idea of how much installation would cost. They would be accustomed to solar panels for RV's, but probably not small cars. A panel of that size would cost perhaps $500-800 just for the panel.
Q:how much money does solar panels save?
I can tell you for a fact you can save money with solar panels. I have a system. I have a 3.74 kw dc system which cost $26K, I got a $0K rebate from my utility and a $2K fed tax credit. I will break even or get ROI in 6-7 years. My system generates about $2K of energy per year. The benefit of a school is most of the energy will be produced during the time that the students are using the facility so you may see a better return. I still use much of my energy when the sun goes down. All businesses get a 30% fed tax credit when they install a system, and many states offer larger rebates to businesses. There are many factors that will determine the efficiency of the panels, my orientation isn't ideal so that drops my production a little. Shade can reduce the number of hours a panel can produce. The number of hours of sunlight and the number of days it is cloudy can affect production as well. Your utility policies can have an economic impact, not all utilities allow the meter to run backwards or buy back the excess energy you produce, most schools are out of session during the longest most productive days. The biggest problem for solar is the large initial payment, without grants or loans it is unlikely a school would have the money to put up a large system. There is no need to zero out the bill, even a partial system can save money.
Q:Solar panels?
Yes there are lots available in many different types for instance take a look at www.okorder.com
Q:information on solar panels?
The main components for a solar electric system are the panels, racks for mounting the panels, and inverter to convert the panel's DC power to AC, which can be pumped into the grid if necessary. There would also be various electrical supplies involved - wire, conduit, possibly a switch and/or circuit breaker. On the paperwork side, there's a building permit, permission from the power company to connect, and some inspections. Although it could be done by a homeowner, it's not a trivial project, and the best way to get it set up is to contract a professional solar installer. They all give free quotes, and can explain your various options when they visit.
Q:simple definition of how a solar panel works?
Sunlight (photons) hit a piece of silicon and knock electrons out of it. That causes a flow of electrons, which is electrical current. simple enough? a better explanation from wikipedia: A solar cell is a device that converts the energy of sunlight directly into electricity by the photovoltaic effect. Sometimes the term solar cell is reserved for devices intended specifically to capture energy from sunlight such as solar panels and solar cells, while the term photovoltaic cell is used when the light source is unspecified.
Q:How can I regulate current from a solar panel?
Lithium batteries do have special charging requirements. I would recommend that you use the 2 volt charger that came with them to keep them happy. Automotive power systems can have voltages as high as 4.5 volts when the engine is running so there's no need to limit the output of the panel to anything less than that. Check with the charger manufacturer to see what it will withstand. Some will work with systems up to 24 volts nominal (up to 29 volts actual) found in larger commercial vehicles such as trucks and busses. If your charger will work with both 2 and 24 volt systems you might not need anything extra to use the unregulated output of the panel. Otherwise I'd recommend a shunt regulator to clamp the output of the panel to no more than 4.5 volts. That way it would dissipate (waste) very little of the panel's power, and even that would only be during those rare times when the panel is producing maximum output. Such a device could be as simple as a high power zener diode, a low power zener coupled with a power transistor, or a precision shunt regulator such as a TL43 coupled with a power transistor. A more complex way would be a to use buck/boost regulator between the panel and your charger. You might gain a slight advantage under low light conditions when the panel isn't putting out much but the overall efficiency could end up worse than the simpler shunt regulator. Under optimum conditions, I would expect it to take a full day for a 3 watt (peak) panel to charge just one of your 35 Wh batteries. Charging an intermediate device such as the Sherpa 50 through its built in charger and then using it to charge your battery through yet another charger would severely cut your overall efficiency. Depending on how long you'll be gone, it might be far more practical, reliable, and economical to just carry (or find a way to be resupplied with) a few additional fully charged 35 Wh batteries. Don

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