super long service life Solar Polycrystalline panel 40W-50W

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Product Description:

Solar Polycrystalline Series (40W-50W)

Introduction of Solar Polycrystalline Series (40W-50W)

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


Characteristics of Solar Polycrystalline Series (40W-50W)

ISolar Cell : High efficiency crystalline solar cell. Even if under the weak light, the

solar module can produce maximum power output.

IITempered glass (toughened glass): Anti-reflecting coating and high transmission rate

glass increase the power output and mechanical strength of solar module.

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

IVAI frame: Without screw, corner connection. 6 holes on the frame can be installed


VJunction box: Multi function junction box with water proof.

VILong lifetime: ≥25 years; Less power decrease.

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

VIIIResisting moisture and etching effectively, not effected by geology. .


Standard Test Conditions of Solar Polycrystalline Series (40W-50W)

The opto-electrical specifications shown below are stabilized values being measured at

Standard Test Conditions of multicrystalline silicon Solar Panel, 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



Advantages of Polycrystalline Solar Polycrystalline Series (40W-50W)

• CNBM Solar performance guarantees for 25 years

• 2 years guarantee for workmanship for multicrystalline silicon Solar Panel

• Timeliness of delivery

CNBM International Corporation's products including Monocrystalline Solar Panel,

Polycrystalline Solar Panel ( multicrystalline silicon Solar Panel) have received and

enjoyed famous reputation in many countries and regions in the world .As a solar panel

manufacturer in China, we strive to provide our customers with excellent service,

superior products and unmatched value.


Characteristics of Solar Polycrystalline Series (40W-50W)

Max Power Voltage Vmp (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

















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

Limits of Solar Polycrystalline Series (40W-50W)

Operating Temperature

–40 °C to +85°C

Storage Temperature

–40 °C to +85°C

Max System Voltage



Guarantee of Solar Polycrystalline Series (40W-50W)

Products Guarantee

2 yrs free from defects in materials and workmanship

Performance Guarantee

No less than 90% within 10yrs and no less than 80% within 20yrs




The Equipment of Solar Polycrystalline Series (40W-50W)


 Solar Polycrystalline Series (40W-50W)


The Usage of Solar Polycrystalline Series (40W-50W)

Solar Polycrystalline Series 40W-50W

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Q:How to charge a Battery with Home Electricity and Solar Panel together?
No, don't connect the panel directly to the battery. You need to isolate the solar panel charging output from the AC-powered charger. A couple of high-current diodes arranged with their anodes connected to the charging sources in the positive supply line will allow either the charger or the solar panel to lift the voltage high enough to charge the battery, albeit with about 0.6 volts dropped across the diode. Both cathode ends would be connected to the battery. This arrangement allows a positive current to flow from either or both charging sources at the same time, although in practice, one will generally be higher than the other. Also, if the AC charger's voltage is significantly higher than the solar panel, the charger may always charge the battery. You would need to regulate its output to be slightly lower than the solar panel when it's near it's minimum useful operating voltage. (note that the 0.6 forward bias voltage on the diode might prevent the solar panel from completely charging the battery if it has any voltage regulation on its output)
Q:how do i fix my solar panel? please hurry i need it for my science fair project?
leave the car in the sun for a few hours to see if it charges. if not, the panel is defective. get it replaced b4 the science fair
Q:Solar Panel System at Harbor Freight?
I would not buy Harbor Freights Chinese made Solar kits-I tried one and don't think it produces enough power to run a flashlite
Q:harbor freight solar panels ?
Unless things have changed in the past few years, their panels are amorphous silicon, and sharply decline in output after 6 to 2 months. The panels have no STC (standard test condition) rating, so the 5-watt panel is really more like 5 watts. And the warranty is very short - 90 days, compared to the 25-year performance warranty of any serious crystalline silicon panel. But if you have a fun little project that does not have to last, Harbor Freight is a convenient source.
Q:Question about commercial solar panels?
In my experience working with solar panels, I've found that the panels themselves are robust and can last years. How that energy is transferred from the panel to perform work (sorry for the boffinism) is where the complexity emerges, namely due to the fact solar panels produce DC current, and nearly all of our electrical appliances use AC current. In most cases, solar panels will either send energy through a DC/AC inverter directly to be used for appliances, or stored in deep cycle batteries, then converted to AC using an inverter when the user wants to use his/her appliance. Now to answer your question: the solar panels will be fine, and could conceivably be in fine working order with AC current available IF... and I cannot stress this enough (namely through years of field experience dealing with solar powered scientific instrumentation that was working well and then mysteriously not working)... IF rats and other rodents haven't eaten through the wires. This is probably the most likely reason that a set of solar panels wouldn't be working in your given scenario. Hope this helps, and good luck!!
Q:How do I get a grant passed for my school for solar panels?
Call the Architect and ask what the heck he should have put solar panels into the plans for the building. Demand Results, If no results call your local newspaper
Q:How many solar panels?
My guess is that you might find everything concerning solar power at
Q:why wont my solar panel make my dc motor work?
You didn't say how much power your panels can produce, or how much power (current x volts) the motors require. The panels must meet or exceed what the motor requires. You might need to get a very small motor and a little gearbox out of some other motorized toy, or at least a small pinion gear for the motor and a larger ring gear that can be attached to an axle (similar to how RC cars accomplish their drive train). A worm gear drive set might be even better if the motor / solar panel combination isn't very powerful - it'll go slowly, but some movement is better than no movement. If you put the panels in series, a 2 V motor should be the best match (again, only if its power requirements are small enough). If you want to try running the 3 volt motor off the panels, you might try paralleling them (make sure you get the polarity right or they'll try to kill each other) - you'll still be mis-matched, but if the motor requires less power than the 9/2/8 volt motor(s), it might work. If you have or can acquire a multi-meter, you'll be able to measure the voltages and currents and that will not only help you see what's going on, but adding some details might help others help you get this working.
Q:someone knows about solar panel?
Q:How many solar panels do I need?
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1. Manufacturer Overview

Location Jiangsu, China
Year Established 2004
Annual Output Value Below US$1 Million
Main Markets Australia;Asia;South East Asia; South America;North America; Europe;Africa
Company Certifications ISO 9001:2008; CE; TUV; UL

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Shanghai
Export Percentage 1% - 10%
No.of Employees in Trade Department 200-300 People
Language Spoken: English;Chinese
b)Factory Information  
Factory Size: Above 8,000 Square meter
No. of Production Lines 6
Contract Manufacturing OEM Service Offered;Design Service Offered
Product Price Range Average
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