Polycrystalline Solar Panels-145W-Apply to Small Solar System

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Solar Polycrystalline Series Panels

Introduction of our company

We are leading global provider of green energy technology and solutions. Since 2005, our company has earned a reputation for superior quality and production efficiency. The company has shipped millions of solar and lighting products to customers around the world, supported by more than 30 office locations in 16 countries.


Drawing on its deep heritage in solar technology, our company has deployed its expertise to the LED lighting sector. Through its exceptional manufacturing and sales channels, we produces and supplies a wide range of LED products to add value and meet ROI objectives for distributors’ clients across a number of sectors.


We are committed to produce development and quality control and all of our products comply with international quality standards. We are focused on constantly developing more efficient green energy products and optimizing our cost structure while maintaining technological leadership in our field. We has received numerous patents for new technologies and innovations, and our green energy products are well received by customers around the world.


Our R&D teams are constantly exploring new ways to improve photoelectric conversion efficiency and reduce manufacturing costs. One of our flagship products, the Virtus II Wafer, remains a technological leader in its field while actively optimizing the cost structure. Together with downstream enterprises, this ultimately reduces the total investment in solar photovoltaic systems, and thus greatly improves the overall rate of return on investment.


Characteristics of Polycrystalline Solar Panels

I Solar Cell : High efficiency crystalline solar cell. Even if under the weak light, the solar module can produce maximum power output.

II Tempered glass (toughened glass): Anti-reflecting coating and high transmission rate glass increase the power output and mechanical strength of solar module.

III EVA and TPT: Using high quality EVA and TPT to prevent destroying and water.

IV AI frame: Without screw, corner connection. 6 holes on the frame can be installed easily.

V Junction box: Multi function junction box with water proof.

VI Long lifetime: ≥25 years; Less power decrease

VII Good performance of preventing from atrocious weather such as wind and hails.

VIII Resisting moisture and etching effectively, not effected by geology.


Standard Test Conditions of Polycrystalline Solar Panels

The opto-electrical specifications shown below are stabilized values being measured at Standard Test Conditions, Irradiance: 1000W/m2, Spectrum: AM1.5 at 25°C, The info below is subject to manufacturing tolerances. Where appropriate minutes of measurement are available and are used for the dimensioning of the installation.


Advantages of Polycrystalline Solar Panels

1.High reliability with guaranteed -3% to +5% power output tolerance, ensuring return on investment
2. High conversion efficiency based on leading innovative photovoltaic technologies
3. Withstands high wind-pressure and snow load, and extreme temperature variations
4. Attractive appearance Unique frame design, high mechanical strength, and easy Installation 


Characteristics of Polycrystalline Solar Panels


Max Power Voltage Vmp (V)


17.4 V

Max Power Current Imp (A)



Open Circuit Voltage Voc (V)



Short Circuit Current Isc (A)



Max Power Pm (W)



Temperature Coefficient of Cells




Temperature Coefficients of Isc (%/)


Temperature Coefficients of Voc (%/)


Temperature Coefficients of Pmp (%/)


Mechanical Data Solar Polycrystalline Series






7.7 kg/8.4kg



The dimension of the modules can be changed according to the demand of clients Limits.

Operating Temperature

–45 °C to +80°C

Storage Temperature

–45 °C to +80°C

Max System Voltage


Guarantee Solar Polycrystalline Series Panels

Products Guarantee

2 years free from defects in materials and workmanship

Performance Guarantee

No less than 90% within 10yrs and no less than 80% within 25yrs




Dimension of Solar Polycrystalline Series Panels



Polycrystalline Solar Panels-145W-Apply to Small Solar System


Polycrystalline Solar Panels-145W-Apply to Small Solar System





We have organized several common questions for our clientsmay help you sincerely


1.    What’s price per watt?

A: It’s depends on the quantity, delivery date and payment terms of the order. We can talk further about the detail price issue. Our products is high quality with lower price level.


2.    Can you tell me the parameter of your solar panels?

We have different series of cells with different power output, both from c-si to a-si. Please take our specification sheet for your reference.


3.    How do you pack your products?

We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.


4.    What is your warranty system?

 Our product performance guarantees for 25 years

12 years guarantee for workmanship

Timeliness of delivery

Quality Products certified (TÜV, UL, CE, ISO)


5.    How do you pack your products?

We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.


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Q:solar panels on housing developments?
Wow that is a great idea! We have so many old houses around here that no one lives in and they are building houses on 2 /2 acre lots. That seems like a waste of land. There is this construction company that is building town houses with solar panel roofs and the upstairs is the bedrooms and the down stairs is the living area so that it takes a very small lot. 40 x 60 even has room for a car port and small backyard. My friend has one and he made it low cost so everyone has a chance at home ownership. They are being build where he is buying the land and tearing down old houses and puting up these town houses. Makes the town look better and cleans up otherwise bad looking neighborhoods. If they can do that here why not all over? By building up she was telling us it cost less for foundation and roofing which is the most expensive. It is 900' sq ft. 2 bdrm bath. Let's go back to the time when people didn't have to have these 6000 sq.ft houses with 5 acre lots.
Q:do solar panels have to be in direct sunlight?
Should be okay but you might lose a little power if the windows blocks infrared or ultraviolet light [which I believe they do]
Q:Can A Home Owned Solar Panel Support The Entire House's Electrical Needs?
why okorder.com and we will tell you and everyone else what they would need.we will tell you to the dollar what it takes to accomplish your desire.thanks tommy
Q:I need a lightweight form fitting solar panel with the best power potential?
Q:Where are solar panels used?
This Site Might Help You. RE: Where are solar panels used? Where in the world are solar panels used. If it is used widespread across a continent just say which continent, other than that, just name the country. So where are solar panels used often?
Q:explanation of solar panels?
You'd better build some sample project. For e.g, if you mean solar water heater, install one pc on your roof, and make it generate hot water, and tell people about it.
Q:Solar panels for a small gym outside my house?
Build okorder.com/
Q:5kw Solar Panel Roof Kit?
Note that aiming is important - the sun is going to be perpendicular to the panels for only a few hours a year unless they are on an adjustable mount, so picking the time you most want power should be a factor in the angle they are mounted at - you can't keep the highest level of sun for summer into the winter time when the sun is much lower in the sky for a shorter time.
Q:Solar panel questions...?
. Do they scratch easily? No How do I remove snow from them without scratching them? Just wipe the snow off 2. What does the upkeep of many solar panels consist of? Clean them with tap water and paper towels once a month. 3. Are all solar panels made from the same material, regardless of size? Basically the same.
Q:How to connect solar panels to batteries?
20 volts is a common open-circuit voltage for nominal 2v panels. The panels put out about 5v at full load. If the panel puts out little enough that it takes 20 hours or more to put a full charge in the battery you can get by without a charge controller - just keep the cells topped up with distilled water. A charge controller will do a more efficient job, though. The most efficient charge controllers use what's called Maximum Power Point Technology (MPPT) which lets the panels operate at their most efficient point throughout the battery's charging cycle. Available on OKorder. The charge controller should have the same or higher wattage as the panels it controls - if you're not sure of wattage, assume that they are the same as similar area panels you find for sale. Before buying a charge controller, connect the panels through an ammeter to a discharged battery. They may have been trashed because of damage and low output. You need at least an amp for trickle charge, 5 amps for reasonable recharge times.

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