Poly Solar Panel 140W B Grade with Cheapest Price

Ref Price:
Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
100 watt
Supply Capability:
10000 watt/month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 140 Number of Cells(pieces): 36

Product Description:

Poly Solar Panel 140W B Grade with Cheapest Price


Product description

A solar cell, or photovoltaic cell (in very early days also termed "solar battery"[1] – a denotation which nowadays has a totally different meaning, see here), is an electrical device that converts the energy of lightdirectly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon

Solar cells are described as being photovoltaic irrespective of whether the source is sunlight or an artificial light. They are used as a photodetector (for example infrared detectors), detecting light or other electromagnetic radiation near the visible range, or measuring light intensity.

Each module is rated by its DC output power under standard test conditions, and typically ranges from 100 to 365 watts. The efficiency of a module determines the area of a module given the same rated output – an 8% efficient 230 watt module will have twice the area of a 16% efficient 230 watt module. There are a few solar panels available that are exceeding 19% efficiency. A single solar module can produce only a limited amount of power; most installations contain multiple modules. A photovoltaic system typically includes a panel or an array of solar modules, a solar inverter, and sometimes a battery and/or solar tracker and interconnection wiring.

Poly Solar Panel 140W B Grade with Cheapest Price



Application

Business

Home

Industry

Large project


Feature

1. A grade high efficiency solar cells. 
2.TUV/UL/CE/CEC etc
3.Fast shippment 
4.25 years warranty 

5.OEM/ODM


Packaging

28pcs into one carton


Shipping

Material in stock can be produced (procedure 5-20days) right away after pre-payment confirmation. COSCO Mearsk MSCship to worldwide for safe shipping, don't worry about package damage or loss. It takes about 15-40 days to worldwide, Please note us your contact details include your phone number for easy contacting from shipping company officer.


Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:Air conditioner 25 volt 5 amps: how many solar panels and batteries to run 24/7?
You would need 6 300 watt solar panels, US price around $300 per, And a minimum of 4 batteries. You are going to have major problems only having 5 hours of sun though.I am not sure you could get it to work with only that much sunlight. Along with an inverter and some other controller units. If you live in an area that has some wind, a wind generator would knock it down to where you would only need 2 solar panels and a small 500 watt wind generator. The problem you are going to have is trying to run it all the time. I had an AC that size in my camping van, it took about 20 minute to run two batteries down so low that the inverter started to sound the low battery alert. If I left it running it did ok, and I had an over-sized alternator for it. I had a 50 amp heavy truck alternator. A swamp cooler would be a lot less energy, you could easily recycle about 95% of the water. I know this is the 2st century and this may sound a little nuts, but with only 5 hours of daylight, if you have some trees you could use for burning you could build an outdoor steam engine cheaper and it would charge a lot more batteries in a lot less time. Plus you could run off the steam engines generator for as long as you had a fire day or night. Even a small 55 gallon water tank would give you plenty of head for the steam. You could easily run a 6000 watt generator off of it and have plenty of electricity while it was running. Just a thought, I had to resort to some extreme measures when I bought some Montana land in 2000, it was 6 miles to the nearest utility pole.
Q:How do you use solar panels?
Custom solar-heating systems are unique. Does yours have a circulating pump? Does it have a storage tank? Is the fluid that goes to the panels separated from the household water and transfers heat through a heat-exchanger radiator, and the fluid has antifreeze in it? If it does, is the antifreeze of the variety that won't poison your family if there is a leak? Does your system have a thermostat-controlled pump that turns on when the water in the panels are hot? Does it have a limit-thermostat to turn off the pump when water in the storage tank is hot? There are many more variations to operation of solar-heating panels. Find out who designed it or who knows how to operate it and ask them.
Q:What's the best deal for Solar Energy panels for your home?
Solar okorder.com
Q:Are solar panels a viable option in IL?
Absolutely you can have solar panels in IL, there Anna. I am from Rochester, NY so I am a little familiar with frequent snowfalls! Plus my In Laws have solar panels and they live just outside of Chicago. (Oak Park sounds familiar, but I cant for the life of me remember the name of their community) Check with your local building department as to what you may have to do to your existing roof, as the panels and its necessary roof bracing can be quite heavy. Add a good Lake Michigan snowfall to an already heavy roof and you could have yourself a big problem! In better news many utilities and states around the country provide financial subsidies and incentives that along with the subsidies from those from the Federal Government greatly reduce the initial cost and speed up the amount of time it takes for you to recoup your initial investment. Solar panels by their very nature are warm, as they absorb the light from the sun. The latitude for IL is such that the solar panels on your roof will be tilted so much that the only way snow can build up is if there such a snowfall on your roof that its accumulation rises above the solar panels. There is no such thing as heated solar panels and you can very easily have solar panels in climates ranging from the Carribean to Northern Canada/Alaska. If you get serious about solar energy give a company called Sun Electronics a call. I know it may sound lame but my in-laws used them for their house and have been quite happy with the outcome. My In laws (at times) are cheap and are not an easy crowd to please.....but again are very happy with their outcome! Good Luck.
Q:How about solar panels?
I will answer your question with a question. Why does everyone try so hard to point out why they think (I did say think and they are normally wrong) something will not work. I agree with your idea but you are wanting to put the help or money in the wrong place. If we would just take care of our own here at home. We would not need their oil so they would have more for their own use. This would aswell stop our money from leaving our country and they would NOT beable to use our money to build bombs to kill us with. So just by taking care of ourselfs we would be helping Iraq and our own country. We would not need their oil and they would get what they want. Us out of their country. However, That will not help bush and his OIL millionaire friends so it will never happen.
Q:What are solar panels made up of?
Solar panels (aka photovoltaic panel) are most often made up of thin wafers of crystalline silicon or cadmium telluride. As photons from the sun enter the photovoltaic cell, electrons are freed from the substrate when are then collected by wires that run throughout the panel. And as we know electrons=electricity!
Q:how often do you have to replace solar panels?
One of the major solar panel manufacturers just upped their warranty period to 30 years for 90% of their rated output because the panels just keep working without losing efficiency. Of course if a large hail storm comes by you might have to replace them a little earlier..
Q:I have 700watts ups and 2V,65amp battary..i want to add solar panel to just only charge my 2v,65amp batt.?
What you are stating is that the battery you have will operate the UPS for about 2 hours before it is drained past the point of no return (technically 2.82 hours, but that would be a dead battery - most well-designed UPS systems cut off when the battery gets below about a 30% charge so that battery is not damaged. Lead-Acid batteries have about a 0%/month self-discharge rate if there is no load connected. The very best systems are as low as 3%, the worst are over 20% - and all at a 'normal' temperature. So, you will need a maintenance charger of about ten (0) watts or so - amp will be more than enough. And about any solar panel will handle that much with the proper charging connection.
Q:What is the anatomy of a solar panel?
You've probably seen calculators that have solar cells -- calculators that never need batteries, and in some cases don't even have an off button. As long as you have enough light, they seem to work forever. You may have seen larger solar panels -- on emergency road signs or call boxes, on buoys, even in parking lots to power lights. Although these larger panels aren't as common as solar powered calculators, they're out there, and not that hard to spot if you know where to look. There are solar cell arrays on satellites, where they are used to power the electrical systems. You have probably also been hearing about the solar revolution for the last 20 years -- the idea that one day we will all use free electricity from the sun. This is a seductive promise: On a bright, sunny day, the sun shines approximately ,000 watts of energy per square meter of the planet's surface, and if we could collect all of that energy we could easily power our homes and offices for free.
Q:What specification of solar panel do I need?
I okorder.com/ says they have DC to DC solutions from 2 V for most laptops.

1. Manufacturer Overview

Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range