Sunpower U Series 260/270/280/290/300w Poly Solar Panel for Solar Light

Sunpower U Series 260/270/280/290/300w Poly Solar Panel for Solar Light System 1

Sunpower U Series 260/270/280/290/300w Poly Solar Panel for Solar Light

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 1000 watt

Supply Capability:: 1000000 watt/month

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Product Description

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

Features:
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)

Application
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)W	260Wp	270Wp	280Wp	290Wp	300Wp
Maximum Power Voltage(Vmp)V	36/18	36/18	36/18	36/18	36/18
Maximum Power Current(Imp)A	7.2/14.4	7.5/15	7.77/15.55	8.05/16.11	8.33/16.66
Open Circuit Voltage(Voc)V	39.15/19.1	39.2/19.3	39.3/19.4	39.3/19.4	39.6/19.8
Short Circuit Current(Isc)A	7.8/15.6	8.03/16.05	8.13/16.26	8.86/17.72	9.16/18.33
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)	1920100040

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.

Q: I am searching for producers or distributors of solar panels. Thanks!: There are ton's of distributor around that can provide you a cheap solar panel that didn't came from China. Expand your knowledge and learn from a renowned solar company about the Best Solar Panels. Visit our site and contact us today!

Q: Is there a cheaper way on how to make your own solar panels ? Can someone share their real life experience ? Thank you.: It used to be possible to get broken solar cells for free from solar cell and solar panel manufacturers and then it's just a matter of labouriously measuring the voltage and current characteristics of each fragment and soldering them in a combination of parallel and in series to get a crude solar panel with the desired output but the manufacturers have caught on and now sell the broken fragments by the pound so it's not really a cheap solar panel anymore but it's still very labor intensive and results in a fragile solar panel that is readily damaged and quickly degrades. Not really worth the trouble any more.

Q: Can solar panels be used for powering outdoor lighting?: Yes, solar panels can be used for powering outdoor lighting. Solar panels capture sunlight and convert it into electricity, which can then be stored in batteries. This stored energy can be used to power outdoor lighting fixtures, making them independent of the grid and environmentally friendly.

Q: Monocrystalline panels are sooo expensive! Thanks for reading.: image voltaic thermal or warm water beats PV or Photovoltaic on a daily basis. The Mono and Poly are the main conventional. they provide years of provider and function a shown song checklist. they do no longer seem to be very warmth tolerant. production will flow down on warmer day as maximum shrink sheets will instruct. Amorphous Panels are greater warmth tolerant. they're additionally greater valuable at production with ,low easy or in part cloudy days. They produce much less what in keeping with sq. foot and want a larger section. First image voltaic produces those variety of panels. HIT by utilizing Sanyo blends those 2 together to produce a panel with the main suitable of the two structures. All PV is costly. The payoff tiers from 7-2 many years in keeping with many components.

Q: We have LED at the output of 40 watts and is used for 0 hours giving us 400 Watts-hr of energy consumed.Rechargable batteries needed are 2 V. 400/2 gives us 34 Ampere-hour battery needed. If we want it for 3 days, It would be 34x3=00 Ah. So the battery needed 00 AhNow how do I select the solar panel which can charge this/these batteries? What should be its rating?: Be aware that you cannot discharge the full capacity of a lead-acid battery without destroying the battery. With a normal battery of this type, you would only want to discharge about 20%, so you would need a 70 AH battery bank. For the 3-day requirement, 500 AH. This is still within reason. If you didn't have the 3-day requirement, you might consider going with NiMH batteries. Back to the 500 AH bank, you would usually charge at at least 5% C, or 25 amps. At the 5 volts that you need for charging, this is 375 watts. Possibly you could go as low as 200 watts.

Q: I know the basics of how solar panels work. Solar panels convert sunlight into DC electricity which is stored in batteries which would need to be run through an inverter to convert it to household AC. But is there a way for the appliances to use the solar panels electricity FIRST and any additional power from the grid? Is that how it works or do they only run specific devices(water heater, pool pump, etc)?: Light striking a silicon semiconductor causes electrons to stream, making power. Sunlight based force producing frameworks exploit this property to change over daylight straightforwardly into electrical vitality. Sunlight based boards (likewise called sun powered modules?e prepare immediate current (DC), which experiences a force inverter to get rotating current (AC) — power that we can use in the home or office, in the same way as that supplied by an utility force organization. There are two sorts of sun powered force creating frameworks: matrix joined frameworks, which are associated with the business power framework; and stand-alone frameworks, which encourage power to an office for prompt use, or to a battery for capacity. Network joined frameworks are utilized for homes, open offices, for example, schools and healing facilities, and business offices, for example, work places and strip malls. Power produced throughout the daytime could be utilized immediately, and in a few cases surplus power might be sold to the utility force organization. In the event that the framework doesn't produce enough power, or produces none whatsoever (for instance, on an overcast or blustery day, or around evening time) power is acquired from the utility force organization. Power preparation levels and surplus offering might be weighed continuously on a screen, a compelling approach to gage day by day vitality utilization. Remain solitary frameworks are utilized as a part of a mixed bag of provisions, including crisis power supply and remote force where conventional foundation is distract

Q: How can I calculate the amount of watts needed for a solar panel to power a water and air pump in gal/hr and a 600 watt LED light?: Mimi: Solar Power is not really that economical, and has many other disadvantages as well. You did not specify much info in your question as to the size of the water or air pump. So let's make some assumptions to get you some numbers. ) Let's say the water and air pump are about HorsePower (HP). The HP pump , considering efficiency losses, will draw around ,000 Watts , or kW. 2) The 600 Watt LED Light is quite high --- they are usually much smaller lights 40 Watts or less. BTW --- these LED lights are very expensive light as well. Just so you are aware. Between the pump(s) ( maybe 000 to 400 Watts) and the 600 Watt light ----- and without knowing the specifics --- you are probably looking at around 2,000 Watts or 2 kW. A 2 kW Solar PV unit will run around $20,000. The PV unit will only run at full capacity during daylight hours. They usually average about 5 hours per day. So you will only be able to run your pump and LED Lights during the middle of the day --- maybe 0:00 AM to 5:00 PM. If you want to run the pump and lights after sundown, you will need battery back-up. The electric storage batteries will likely run about an extra $5,000. They will last about 5 years. If you decide this doesn't work out well --- you can stay with the local utility --- at $0.0 per kWh. It will cost you about $0.0 per hour to run the pump --- maybe 30 to 50 cents per day. It would cost you about 6 cents per hour to run your light. Maybe 30 or 40 cents per day. You could essentially run your pumps and light several hours each day --- all for about $ per day, or $365 per year. This sounds like a less costly alternative.

Q: how does solar panels work?: Solar panels collect solar radiation from the sun and actively convert that energy to electricity. Solar panels are comprised of several individual solar cells. These solar cells function similarly to large semiconductors and utilize a large-area p-n junction diode. When the solar cells are exposed to sunlight, the p-n junction diodes convert the energy from sunlight into usable electrical energy. The energy generated from photons striking the surface of the solar panel allows electrons to be knocked out of their orbits and released, and electric fields in the solar cells pull these free electrons in a directional current, from which metal contacts in the solar cell can generate electricity. The more solar cells in a solar panel and the higher the quality of the solar cells, the more total electrical output the solar panel can produce. The conversion of sunlight to usable electrical energy has been dubbed the Photovoltaic Effect. The photovoltaic effect arises from the properties of the p-n junction diode, as such there are no moving parts in a solar panel.

Q: I want to install solar panels in my roof and most installers don't recommend any particular brand. Do you have experience with any particular brand that has worked for you or anybody you know? Does the brand of the panel make a difference?: Mitsubishi panels have served us well for 3 years so far, no problems. Kyocera had a well-known problem many years ago, but they lived up to the warranty and replaced defective panels. Their current products are considred good. I like the value delivered by Suntech panels. Might be a best buy - shop around. I have not heard about any of the major brands having trouble, lately. If you're intending to connect to the grid, be cautious about used or blemished panels. While they might work fine, they usually are ineligible for rebates.

Q: Does anyone own any and would you recommend them? right now i only own solar stake lights and i use them during the summer in my yard. But during the winter i take them out because they don't charge well. I live in toronto canada where it snows a lot during the winter, would it even be worth it to buy solar panels? Would they get covered with snow if the were mounted on my roof and get ruined? I plan on buying some when i purchase my own home.Any info would be appreciated:): The best sort of solar panel for $ to energy is the hot water type that use a vacuum tube system to heat your water. This saves you money on heating water and is relatively cheap to install compared to other things like wind or PV solar. I'm not too sure about where you live (I'm in the westcountry of the UK where wind energy IS viable... but usually it isn't). The best sort of Photo voltaic solar panel (that makes electricity)is still expensive yet very reliable as they only need photons to fall on them not neccessarily full sunshine and they are improving all the time. It depends on the pitch of your roof as to whether snow settles on them. One can have a system that sells power back to the national grid and then you buy what you need with a discount for what you produce. Obviously if you can afford enough panels one could even make a profit. Or you can go self-sufficient, but then you need batteries and an inverter to convert your 2 volt battery output back to 20 volts or whatever you use (it's 240 volts in the UK). Then it's a matter of how efficient your batteries are in amp hours. Dry mainainence free deep cycle batteries are best for this job and quite expensive still. Wind generators are only really practical if you can mount them high enough from the ground to where there is more constant wind. As I said that depends where you live and the prevailing winds. The very small ones are basically useless except for emergency lighting or something, so one needs a fairly large turbine to produce enough power for a modern home so planning restrictions should be considered when going down this road. For now, solar power is definitely the way to go, even as far North on this planet as Canada and the UK. Good luck. Once you have the system it's basically FREE energy!

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