Solar Panel with Frame and MC4 Connector A Grade 300w

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1 pc
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10000000 pc/month

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Product Description:

1.Structure of Solar Module Description

CNBM Solar's photovoltaic module is designed for designed for large electrical power requirement. It is the optimal choice for both on-grid and off-grid power systems. CNBM Solar offers high performance of power per square foot of solar array.


2.Main Features of the Solar Module

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

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

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

Strong aluminum frames to strengthen the load hold and to stand against high wind.

Junction box: Multi function junction box with water proof.

Long lifetime:  ≥25 years; Less power decrease.

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

Resisting moisture and etching effectively, not effected by geology.

The certificate issued by international authority: UL, TUV, IEC, VDE, CE.


Quick Details

Place of Origin:

Guangdong China (Mainland)

Brand Name:


Model Number:



Polycrystalline Silicon



Number of Cells:


Max. Power:



25 years

Transform efficiency:



Anodized Aluminum Alloy



Life Span:


Temperature Range:


Junction Box Type:

PPO, Black

length of cable(mm):


Working voltage(V):


Cell efficiency:

Above 17%

Packaging & Delivery

Packaging Detail:With foam sheets laying inside and excellent carton packing outside or wood packing
Delivery Detail:10~15 days after deposit

3.Solar Module Images

Solar Panel with Frame and MC4 Connector A Grade 300w

4.Solar Module Specification

280W 290W 300W Poly Solar Panel with good price
1.Quality A
2.Offer OEM service
3.Efficiency is above 17%
4.CE certificate

280W 290W 300W Poly Solar Panel with good price

280w poly solar panel

290w poly solar panel

300w poly solar panel

Models for All mono solar panel :

Output power




Working voltage

Working current

Open voltage

Short current

OC--M3 w175*175*209 V0.25 A10.7 V0.28 A0.8
OC--M5 w290*194*2018 V0 .28 A21 .9 V0.31 A1
OC--M10 w385*290*2018 V0.56 A22 .3 V0.601.4
OC--M20 w450*420*2018 V1.12 A21.6 V1.25 A2.3
OC--M30 w540*450*2018 V1.67 A22 .5 V1.803.5
OC--M40 w597*540*2518 V2 .23 A21.7 V2.4 A4
OC--M60 w835*540*2518 V3.34 A21.57 V3.6 A6
OC--M75 w1070*540*3018 V4.17 A22.61 V4.52 A8
OC--M80 w1200*540*3018 V4.45 A22.25 V4 .8 A4*98.5
OC--M85 w1200*540*3018 V4.73 A22.65 V5.1 A4*98.5
OC--M90 w1200*540*3018 V5 .00 A22.65 V5.4 A4*98.5
OC--M100 w963*805*3518 V5.56 A22.36V6.02 A6*1810.5
OC--M100 w1300*540*3520 V5 A24 .4 v5.4 A4*1010.5
OC--M120 w1060*805*3524 V5 A29.2 V5.4 A6*810.5
OC--M150 w1300*805*3530 v5 A36.5 V5.4 A6*1012
OC--M160 w1580*805*3536 v4.45 A43.2 V5 A6*1214
OC--M165 w1580*805*3536 v4.6 A43.2 V5.1 A6*1214
OC--M170 w1580*805*3536 v4.72 A43.2 V5.24 A6*1214
OC--M180 w1580*805*3536 v5 A43.9 V5.56 A6*1214
OC--M185 w1580*805*3536 v5.14 A43.9 V5.17 A6*1214
OC--M200 w1810*805*5042 v4.76 A51.2 V5.4 A6*1417.2
OC--M220 w1840*940*5049 v4.5 A59.8 V5 A7*1421
OC--M230 w1840*940*5049 v4.7 A59.8 V5.1 A7*1421
OC--M240 w1790*990*5033 v7.3 A40.2 V8.1 A6*1120
OC--M250 w1790*990*5033 v7.6 A40.2 V8.5 A6*1120
OC--M260 w1950*990*5036 v7.23 A43.9 V8 A6*1224
OC--M280 w1950*990*5036 v7.78 A43.9 V8.5 A6*1224


Solar panel advantages

1.High quality guarantee using high conversion efficiency crystalline silicon solar cells.

2.High performance bypass diodes minimize the power drop caused by shade.

3.High transmittance, low iron tempered glass; high performance EVA, a weatherproof back sheet and sandblast electrophoresis aluminum frame extend the application of modules greatly.

4.Sealed. Waterproof. Multi-functional junction box gives high level of safety.

5.Durable Glass Surface. Our glass surface has been proven to withstand falling hard steel marbles that weigh over 1kg.It can also support over 350KGS of load per square meter


solar panel OEM services

We supply OEM services, you can put your logo and picture on the solar panel. And we can design different watts panel according to customer requirement.


280W 290W 300W Poly  Solar Panel with good price

280W poly solar panel

290W poly solar panel

300W poly solar panel


5.FAQ of Solar Module

1. Q: Do you have your own factory?

    A: Yes, we have. Our factory located in Jiangyin city, jiangsu province.

2. Q: How can I visit your factory?
    A: Before you take off from your country, please let us know. We will show you the way,or arrange time to pick you up if possible.
3. Q: Do you provide free sample?
    A: Usually we do not offer free sample

4. Q: Could you print our company LOGO on the nameplate and package?

    A: Yes, we can do that.

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Q:are solar electric panels viable in the northwest?
Take You need to keep in mind that as long as you are renting your electric from the public utility you are doing just that and renting. You can resale the solar electric system if you move or if you just want to sale it and get some of your money back if not 20 % extra. Then all the years you used the system was all free electric. So it is already viable as you put it. Anything other then buying a system would not be. Here is a thought. The housing market slumped and if you paid 50K for your home it is now only worth if you can even sale it about 00K. Not worth the money but people are still buying homes even if they are not worth what they are being sold for. And then the cars and trucks people buy will never pay for them selfs but people still buy them and spend extra the more wasteful the car is. So why does solar have to pay for it's self or prove it's self? It has many times over but because you can't drive a solar panel drunk and party out in the bars with it is is not worth the money. I guess the is just being human and a double standard. What about the big up front cost of solar? I remember a 20% up front cost when I bought my home and my car and it is the same 20% or less for a solar loan. Plus the value of solar is going up not down like with homes and a car is not worth but half what you paid for it the minute you drive it off the car lot. I can only see good from solar un like other things we buy.
Q:What would happen if a car ran over a solar panel?
Even running over one with a mountain bike will break the pannel. Now depending on how you run it over it might still produce power. If the circut is unbroken then what ever cells were not shattered and severed will work but most likely at a lesser capacity.
Q:Why do solar panels produce zero energy?
Hey Cosmic, forget about Wayfare and Jenny here, but I have to say your question is a bit vague. When you say the panels produce near zero, how near? Are you using a watt meter, ammeter, or some other sort of metering device. Solar electric, or photovoltiac panels are made almost entirely of silicone wafers. Same as computer chips, when they get hot, the resist the flow of electrons. This is why most panel manufacturers advise installers to upgauge wiring if the temperature falls below 40 degrees F (5C) regularly. Below 0 C, you have to upgauge 2 wire sizes. A good quality panel will put out 50% of its rated power in very cold climates, so it stands to reason that they will put out substantially less in hot weather. Many people think places like the SW United States is great for solar because it's always sunny. In Las Vegas for example, they have 27 sunny days a month, and in August, the temperature frequently reaches 50 degrees C (20F) so people with photovoltiac panels are not even getting half their rated power on a good day. I'm not sure this is what you are asking about. Our home has been powered by the wind and sun for 2 years now. In the summer in the upper midwest, the days are warmer of course, but also much longer than in the winter. So our batteries will frequently fill up by 2:00pm, and the charge controller will taper off the solar charging the rest of the day to minimize overcharging. If you were to check the meters at 3pm, you might notice only 3 or 4 amps coming in when the array is rated at 42. This is normal for us in July and August. These are some reason why a solar array produces near zero in the summertime. Take care Cosmic, Rudydoo
Q:How to setup my home on Solar Panel?
good lots of good ideas there
Q:How much power does the solar panel produce?
I also doubt your claim of 4% efficiency. That strength solar panel is brand new technology (this year) and is not available in retail sizes yet. You probably got duped by some false marketing... In any case; even assuming you had a 4% solar panel, there are too many things for us to give you an accurate assessment of the power production. Clouds, location on earth, season, angle of the solar panel; these are all things we need to know to calculate it. Odds are it should have the average rate it produces electricity written on the back panel or with the instructions that came with it. I know of no solar panel retailers that do not also offer free installation. You should get your money back or get that free installation (and then you never have to worry about how much power it has, it just gets you what it can).
Q:Home solar electricity advice? Making the solar panels accessible?
Modern solar electric panels rarely fail. Because of this, if you would be installing them over a roof that only has a few years left on it, it would be better to redo the roof, first. In the unlikely event that a panel needs to be changed, this can be done in 30 minutes or so, because the panels are mounted on racks, with everything simply plugging together. I have never personally seen a solar installation go bad, but from what I hear, the inverter (a box that goes in next to your electric service panel) is usually what burns out after 5 years, assuming the install was done right in the first place. If you were to call roofers to repair your roof, they would somehow be able to get to your roof, by ladders, or a special truck. Solar installers use the same kind of equipment. They won't have a problem getting up there. A solar electric system is actually a very straightforward thing. No matter who installs it, if there is a problem, another installer should be able to diagnose and fix it.
Q:Information Regarding Solar Panels?
The manufacturer of any serious panel should be able to provide an efficiency. That will be the STC power rating of the panel, divided by the area of the panel, divided by 000 w/m^2. But the more interesting figure is cost effectiveness, as you say, which is nothing more than cost per watt for the same class of panels. Most applications are limited by money, not by area.
Q:Run a air conditioner off solar panel?
You can expect such an air conditioner to use something like 500 - 800 watts of power. The ET-P65420 20Wp solar panel produces at most 20 watts so you will need at least three of them. Since solar cells make DC (Direct Current) electricity, and air conditioners use Alternating Current (AC) electricity, you do need an inverter. The M20 is a 220 volt inverter, and I suspect you are looking at a window air conditioner that will probably use 0 volt power. And the M20 only puts out a maximum of 240 watts so you need one for each of the 3 or more solar panels you will have to use. So the first thing to do is shop for air conditioners, getting the most energy efficient model you can find, paying close attention to the voltage and wattage ratings in the owner's manual or on the UL label on the back. Say it is a 500 watt, 0V unit. You will need three solar panels and three 0 volt model inverters. Also note that the 20 watt rating of the solar panels if when the panel is facing DIRECTLY at the Sun. If you just lay them on the roof, then even if the roof is sloped at a good angle (30 degrees) and facing south, it will only produce the maximum power around noon. 4 hours before noon, unless to go up there and tip them up to face the morning Sun they will probably produce only about half that amount of power. So right there you either need a motorized mount to automatically follow the Sun or twice as many panels. However, if you are going to connect the solar panel(s) into the house power, so that it(they) merely supplement the power company power, then you can use any amount of panels, and the power company will supply whatever extra power you need. That requires a licensed electrician to do. Or if you want to just power the air conditioner directly from the solar panels without any interconnection to the house power, then you need to know a lot more about electricity that you appear to know.
Q:Sizing solar PV panels?
75 amps @ 240VDC is 8,000 watts.
Q:simple definition of how a solar panel works?
Sunlight (photons) hit a piece of silicon and knock electrons out of it. That causes a flow of electrons, which is electrical current. simple enough? a better explanation from wikipedia: A solar cell is a device that converts the energy of sunlight directly into electricity by the photovoltaic effect. Sometimes the term solar cell is reserved for devices intended specifically to capture energy from sunlight such as solar panels and solar cells, while the term photovoltaic cell is used when the light source is unspecified.

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