poly panel SWE-P660(BK) Series240W

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Product Description:



• High module efficiency up to 16.00%
• Positive power tolerance 0/+5W
• Robust frame to up to 5400Pa load
• Anti-PID technology
• Hot-Spot protect
• Anti-Reflective glass

Data sheet

Electrical Characteristics @ STCSWE-P660-240(BK)SWE-P660-245(BK)SWE-P660-250(BK)SWE-P660-255(BK)SWE-P660-260(BK)
(STC:standard Test Conditions)     
Max. Power (PMAX) [ Wp ] 240245250255260
Power Output Tolerance (PMAX) [ Wp ] 0/+5 0/+5 0/+5 0/+5 0/+5
Max. Power Voltage (VMPP) [ V ] 30.130.330.530.630.8
Max. Power Current (IMPP) [ A ]7.968.098.218.338.45
Open-Circuit Voltage (VOC) [ V ] 37.237.437.637.838.0
Short-Circuit Current (ISC) [ A ]8.528.588.678.748.83
Module Efficiency (ŋm) [ % ]14.815.115.415.716.0

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Q:Infra-red solar panels?
They are actually working on building photovoltaic panels (Photovoltaic is actually the correct term for sunlight--electricity. Ordinary solar panels are those that use sunlight to heat water) that harness a larger range of wavelengths. From what I can gather the problem is either finding a material that absorbs more wavelengths, or finding a way to get multiple materials to coexist in a single panel. This situation will no doubt improve over time as new things like Nanotechnology give us the ability to create much more complex substances designed at the molecular level for light capture. Panels that can harness a wider range of the spectrum do exist, but the technology is in its infancy, and therefore expensive and not widely known. This isn't too surprising when you consider that Photovoltaic technology itself hasn't been in the mainstream all that long. I am a bit doubtful of photovoltaics that work at night, for the simple reason that at night there is less of *every* kind of energy falling on earth. Less visible light, infrared, etc. Infrared just happens to be particularly good at giving away hot objects, which is how Night Vision goggles work. For the same reason, a night vision windshield might be a very useful tool, but it would still have difficulty picking out colder objects, and those that reflected less infrared light. In other words, you might see cars and pedestrians, but you could easily miss the upcoming embankment 0.o .
Q:Hey. I need some help with solar panels and batteries :) Please see the detailed version beneeth :)?
One lithium cell requires 4.2V to obtain its full charge, Never exceed 4.2V ! Output from solar panel if below 3.7V , nothing charge to lithium. Total charging time until the cell is full depending on the AH rate of cell and the charging current that solar panel can be provided. Suppose cell is rate 5AH, and the charging current from solar panel under full sun shine can maintain 0.5A ( use solar panel short circuit current rate from its specification as a reference ) , hence, 0 hours is enough. And be sure the solar panel can maintain 4.2V output at 0.5A . Remember, over charge lithium cell one time might reduce its life into half . Therefore, let the solar panel output passing through a precision regulator to maintain output is 4.2V is the best way, because, as cell reaches 4.2V , no more charging current is forced into cell ( automatic stop charging ). If you do not have the knowledge to make this simple variable voltage regulator with LM37K ( if you choose this way, buy solar panel output has at least 2V) , you may choose to do it manually by install a current meter and a variable resistor in series between the panel output to cell. By adjust the value of resistor, charging current can be controlled ( if you choose this way, buy solar panel output has as less as 6V ). Count the charging time with a clock and adjust the charging current from time to time to maintain 0.5A .
Q:Why are solar panels only 0% efficient?
Mainly due to reflection (micro-structuring of the surface helps here), incorrect wavelength of the light (the panel is only sensitive to a certain wavelength range) and heating of the panel (due to the incident light/thermal radiation). The remainder is either reflected or absorbed by the cell and re-emitted as heat. Absorption by e.g. the glass panel is slight (a few %), as is absorption/reflection by the necessary surface contacts (again, a few %). Higher efficiency is possible, but brings its own drawbacks (like higher cost). You could now go into two directions: - high efficiency cells/panels with (likely) higher cost and complexity for mounting (like lens or mirror based systems, aka concentrator systems, that increase the light level on the cells in order to increase efficiency) - low cost systems (cheap as dirt) that will allow you to cover every surface of a building, efficiency is less important if you can compensate by a much larger covered area As to the efficiency limit: there is a theoretical limit (from thermodynamics - don't ask me how or why) in the range of 30...40%, depending on which publication you want to believe in.
Q:Solar panels........................?
solar panel is a good product which can use clean energy and convert it into electricity for people use. and will decrease the pollution to the environment.
Q:best value solar pv panel ?
For okorder.com . If powering a PC is your only goal, consider replacing the power supply in your PC with one that runs off native 2 volts (like the kind intended for RV's). Then you can avoid the 30% loss of energy in a cheap inverter. I think you will see a significant drop in the price of panels in the next couple years, by the way.
Q:Need Solar Panel Guru.....?
With your load, the largest system on the page I reference above would not power your entire house, if all the AC units are running. However, how often does that really happen? You need to look at your utility bill and find your actual amoutn of KW hours of electricity used in a year and you hav enot told us that. The base price of top system quoted here without incentives is over $70,000. As you can see, the lions share of incentives is the utility company followed by federal. I have no idea if your local utility company offers incentives or not. You would have to resolve that with them. However, the federal incentives are still there even if your state and local utility has none. However, the price to you goes way up without all of these incentives. And your idea of using windows to mount solar cells is totally impractical. Yes, I know there are web sites that advertize just that, but it is total BS. The first word of advice to anyone looking to do this sort of thing is to FIRST have a complete energy audit done and then do whatever they say to conserve as much energy as possible, thereby reducing your need for solar power. Only then should you look at using solar to cover part of your load. We are a foster family and have adopted 5 children< WOW! I would like to thank you for what you do.
Q:Solar Panel System companies at the swapmeet?
Hard to say. Solar panels are becoming more common these days. May want to ask if the vendor is licensed and bonded contractor (if he's doing installation as well as panel sales). Find out the name of the equipment that this guy is selling (panels and other hardware) and do a search. For that matter, get the guys name and do a search on it to see he pops up elsewhere.
Q:Solar panel cable setup?
4 awg wire is good for 5 amps and will handle 9 total panels at 2 volts
Q:how much solar panel power do i need?
My guess is that you might discover everything concerning solar power at www.okorder.com.
Q:Do solar panels add to global warming?
Third Law of Thermodynamics (in normal speak): “Not only can you never get ahead, you can’t even break even.” This is a truism that applies to all activities involving energy exchange (and almost everything else as well). Energy in the form of solar radiation falls on the earth. That energy is absorbed by the planet (everything) and heat results. Some portion of that energy is lost in the absorption process and the net released as heat is less than that absorbed from the sun. This is true in all cases. Solar panels, both photovoltaic and heat collectors are subject to the Third Law and they all lose some of the radiant energy striking them in the process of converting that energy into either hot water (or whatever fluid) or electrical energy. Regardless of the process there is always a net loss of energy. The time delay you mention has no bearing on the total heat gain or loss for the planet. In fact the “solar panel effect” reduces the net energy put back into the ecosystem because it introduces another iteration of energy loss through conversion. The Holy Grail of energy conservation it the ability to use, store or recover the entire amount of energy produced regardless of the source of that energy, burning hydrocarbons, geothermal heat exchange, solar radiation, mice on treadmills …..all forms of energy suffer a net loss in any exchange! If we could avoid that loss we could dramatically reduce the heat lost into the atmosphere or ground water and our net energy gain would also be dramatic! Check out the super cooled circuits in use to reduce resistance in sophisticated electronic equipment for a good example of the energy savings. (Of course the savings do not account for energy lost in the cooling process. In any event NO….. solar panels do not contribute to global warming via their operation. (Their manufacture is another story altogether!)

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