poly panel SWE-P672-305W

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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-P672-290SWE-P672-295SWE-P672-300SWE-P672-305SWE-P672-310
(STC:standard Test Conditions)     
Max. Power (PMAX) [ Wp ] 290295300305310
Power Output Tolerance (PMAX) [ Wp ] 0/+5 0/+5 0/+5 0/+5 0/+5
Max. Power Voltage (VMPP) [ V ] 36.236.436.536.736.9
Max. Power Current (IMPP) [ A ]
Open-Circuit Voltage (VOC) [ V ] 44.744.945.145.345.5
Short-Circuit Current (ISC) [ A ]8.548.618.678.748.81
Module Efficiency (ŋm) [ % ]14.915.215.515.716

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Q:What is the difference between monocrystalline & polycrystalline solar panels?
The polycrystalline solar panel has a longer life-span and has a higher efficiency. What this means is that from the energy that 'hits' the solar panel, more is caught and used to convert into electrical energy. A polycrystalline solar panel will have an efficiency of about 4%. The monocrystalline solar panel has a similar efficiency but the cells are prone to sunlight, so the efficiency drops over the years.
Q:How can you get affordable Solar Panels?
We are having solar panels installed this Friday. Call a company called Solar City. You can work it through them 3 different ways, you can buy them out right and reap 00% savings, or lease them (like we are) and sign a contract. You won't pay a dime to lease them but your savings won't be as much. The plus side is, you don't have the huge expense either and they are responsible for the maintenance. Lastly, you can lease as the latter option, and purchase during any point of the lease at a pro-rata cost. You can also chose to buy the panels cheaply when your lease is up, but they may be very outdated by then. We have found Solar City top notch, highly trained, extremely polite and considerate. We found them set up at Home Depot. It took from about last January, I think it was, until this Friday, for installation, and then it will be about another 6 weeks until the service is actually turned on. Government red tape, etc. Good luck. I hope this helped.
Q:are biological solar panels possible?
It's done under the name of biodiesel. Plants capture sunlilght and produces oil, oil is used to generate movement by an engine. That can be used for transport or to generate electricity. But they can also get used more directly for solar panels: . though they aren't much good yet. Generally going to convert plant products into energy is still better. Edit: connecting a solar panel to your metabolism will remain for a long time science fiction. The traditional way of eating your food instead of absorbing it into your skin works well and can be very enjoyable.
Q:solar panel battery size?
I'm sure that you might discover everything concerning solar power at www.okorder.com.
Q:Any tips for protecting my solar panel from high winds?
Solar panels are a costly and significant investment. Therefore, protecting them from harm should be a top priority. Unfortunately, moisture and water are common ways for solar panels to become damaged or broken. Safekeeping solar panels from both of these threats is a simple, inexpensive procedure, and doing so might save the solar panel owner a bundle if carried out correctly Instructions : Set a thick strip of silicone between each cell when putting the solar panel together, in order to prevent moisture seepage. 2: Use Plexiglas instead of glass as the face of your solar panel. Plexiglas is less liable to break and therefore safe from hailstorms or accidents. 3: Glue adhesive silicone to each side of your solar panel(s), adding additional sealant and protection from water to your commodity. :)
Q:How much energy does it take to make, install, and eventually dispose of a solar panel?
Best way to determine that is to find the retail cost of a solar panel and compare it to the retail cost of oil. Assuming similar profit margins a $300 solar panel costs the same to produce as 00 gallons of oil.
Q:how can i build my own, cheap, solar panels at home?
The idea behind building your own was to get defective and broken solar cells from the manufacturer, preferably for free though many now charge for them. These are cells that are either cosmetically blemished, cracked or otherwise broken during manufacturing and transportation. As each cell fragment could have very different voltage and current characteristics, you have to manually measure the voltage and current characteristics, sort them and then wire them in parallel or in serial to achieve the desired voltage and current characteristics for the panel. Wiring in parallel increases the current while wiring in series increases the voltage, the current capacity of cells in series will be that of the lowest current capacity cell in that series hence you need to match fragments up to wire in parallel till you have enough current capacity to participate as a cell in the series. Cell fragments can only be wired in parallel if they have the same voltage output. It's painstaking work and it's difficult to place all the irregular shaped cells onto the solar panel in a layout that efficiently uses the space so your solar panels will likely be much larger than commercial ones. You could augment them with Fresnel lenses since the cells don't occupy as much of the available surface area hence focusing the light onto the cells rather than the board will help with efficiency. Practice your soldering skills cause you don't want to have to go back in to figure out where that cold solder joint is. If you're real lucky you can get a supply of blemished cells but the cheapest ones are the broken cells.
Q:Solar panels...??? HELP!?
All depends on how many watts you have. I ran a small boom box off a 5w panel before with no problem. The higher the wattage, the more you can run.
Q:Do solar panels generate power when it's cloudy?
Yes. If there is any light, even on a cloudy day, a solar panel can generate power. But the amount of power generated is much less when the solar panel is not in direct sunlight (about 90% less). On a cloudy day, typical solar panels can produce 0-25% of their rated capacity. The exact amount will vary depending on the density of the clouds, and may also vary by the type of solar panel; some kinds of panels are better at receiving diffuse light. SunPower solar cells, for example, have been designed to capture a broader range of the solar spectrum. By capturing more red and blue wavelengths, their solar panels can generate more electricity even when it’s overcast. Ultraviolet light also reaches the earth’s surface in abundance during cloudy days (if you’ve ever been at the beach when it’s cloudy and gotten a sunburn, you’ve experienced this firsthand). Some solar cells are in development that can capture UV rays, although these are not out on the market yet. Even with a standard solar panel on a cloudy day, though, you will be able to generate some power when it’s daylight. The same thing is true in foggy weather. If you live in a city with frequent fog, like San Francisco, you’ll still be able to generate electricity when the fog rolls in. :)
Q:What capacity solar panel do I need to charge batteries with a total capacity of 25,000 mAhours in 8 hours?
Each battery pack has the equivalent of only 2450mAh capacity at 4 volts, so for 4 battery packs like that, a total capacity of 9800mAh. Assuming that the solar batteries have no charge left after being on all night, and that day charging time equals night discharging time, the theoretical wattage would be 9800mA times 6 volts = 59 watts. Of course, battery charging is not 00% efficient, so you need more wattage than that. Plus, solar panels are rated at peak output at midday, while at other times of day their output is less than rated. And, the charging in parallel isn't a good idea, because real batteries have different internal resistances, some batteries would become overcharged, while other packs wouldn't get the charge they need.

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