Monocrystalline 3BB Solar Cells Photovoltaic Product Purchase

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8250 watt
Supply Capability:
10000000 watt/month

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Item specifice:

Material: Monocrystalline Silicon Max. Power(W): 330 Number of Cells(pieces): 72

Product Description:

Solar Module Summarize

Solar Module is the core part of solar PV power systems, also is the highest value part of it. The function of Solar Module is to convert the sun's radiation to electrical energy, or transfer it to battery and store in it, or to drive the load running.
The Product has been widely used in space and ground, it mainly used for power generation systems, charging systems, road lighting and traffic signs areas. It could offer
a wide range of power and voltage, and with high conversion efficiency, and long service life.

Company Description

CNBM International Corporation, as an important external business platform of CNBM Group, plays as a role to export solar products produced by CNBM. Headquartered in Beijing, We have entered into Solar PV industry since 2005. CNBM Solar is specialized in PV power systems which takes advantage of reliable supplying, convenient installation and free maintenance, and has been used widely, and it is the compensation and substitution of normal power supply. We provide power solutions for home, business and industrial customers, and provide off-grid PV systems for rural area. Our company not only can supply high quality solar Products, but also provides professional system Solutions and high quality services.

Technical Parameter:

Model Type

Good   Quality 250W Solar Panel

Peak Power-Pmax(W)


Open Circuit Voltage-Voc(V)


Maximum Power Voltage-Vmp(V)


Short Circuit Current-Isc(A)


Maximum Power  Current-Imp(A) 


Maximum System Voltage

1000V DC

Maximum Series Fuse Rating


Power Tolerance


Temperature Coefficients of Pmax


Temperature Coefficients of Voc


Temperature Coefficients of Isc


Nominal Operating Cell Temperature


Standard Testing Condition(STC)


Qualification Test Parameters

Operating Temperature


Storage Temperature


Pressure Bearing


Wind Bearing


Mechanical Characteristics

Cell Size

Mono 156*156mm±0.5

No.of Cells







3.2mm High Transmission,Low Iron


Anodized Aluminum Alloy

Junction Box


Internal Diodes

3 Bypass Diodes


1*4.0mm² Length 900mm

Product Show:

Monocrystalline 3BB Solar Cells Photovoltaic Product Purchase

Monocrystalline 3BB Solar Cells Photovoltaic Product Purchase

Monocrystalline 3BB Solar Cells Photovoltaic Product Purchase

Packing & Shipping: 

Monocrystalline 3BB Solar Cells Photovoltaic Product Purchase

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

The normal size is packed by 25pcs/ carton / pallet. Paper carton for FCL shipping and wood carton for LCL shipping.


1Have you ever sold your products to companies in my country?

Of course, we have customers in all general PV markets, but I think we should expand our market share along with the market growth.

2When did your company set up?  You are a new company, how can I believe your quality?

We entered into Solar PV industry in 2005, now we have several plants in manufacturing of a-Si and c-Si panels, and our capacity is 220MW per year. Till now we have already passed all the tests by authorized laboratories, e.g. TUV, VDE, UL.

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Q:DIY single solar panels with outlets?
Q:can i join multiple solar panels?
Check out some of the videos on YouTube on this subject.
Q:LED Lantern Charged via 6 volt solar panel?
If it has a 6 volt battery- is it marked 2 volts on an external plug? If so, there is a resistor inside to drop the potential the battery sees. The battery itself could be slipped out and recharged easily from your 6 volt panel. Just determine how much current (in Amps or Milliamps) the panel produces nominally and divide that into 4 and add one fourth of that length of time to make up for system losses. This will tell you how many hours it should charge assuming your starting voltage of the battery is above .5 volts. and the panel is at 3 volts potential or higher. So if your panel puts out amp at 0AM, you would charge for 5 hours. 4 divided by is 4 and one fourth of that is so 4 plus is 5. It is a little more involved than that, but as a rule of thumb. Also do not discharge tha lantern to the point of no light output. LEDs are efficient, but their current will add up. If it is suggest to be able to use the lantern for up to 8 hours on a charge, stick to that value. Lead acid batteries have best longevity when discharged only to 80 percent capacity. Once battery is charged- disconnect from charging source.
Q:how instal solar panel?
Q:Solar panel charging question?
Most solar panels have something called a charge controller on them. This prevents electricity from going backwards from the battery to the panel. Solar panels are rated at 2V but they do put out a little more than that during full sun operation. You didn't specify the size of your battery but it really doesn't matter. It comes down to your consumption of power. If you are only charging the RV battery so it maintains a charge when you don't use it very much, a 5 watt panel is fine. It will charge the battery and keep the small drains on the battery from making it go dead ( the clock radio, the theft deterrent system, etc use power even when RV is off) But if you are using the battery to run things when you are parked, you probably don't have a big enough panel. If you use a 30watt fluorescent light and a 00 watt laptop, you need 30 watts of power saved up every hour in your battery and that's with no inefficiencies. So if your panel puts out 5 watts an hour and you are using 30 watts an hour, you need 30 watts/ 5 watts = 9 hours minimum of charge time to run your stuff for just one hour. You probably need a panel of around a 00 watts to get any meaningful use of your battery. Plus, you never want to run your battery to full drain because it ruins the plates inside the battery. Watts = volts x amps. If you have 2 volts panels, you would charge at 8 amps with a 00 watt panel. This is a good charge rate. Any more than this and you risk warping the plates with too much heat.
Q:How to wire solar panels?
I'll add a few comments to Teelo's It may not be good to connect the assembled solar cells directly to the battery. When there is no sun I think it will drain the battery. I'm pretty sure all circuits I have seen have a reverse polarity diode in series. (unless Teelo knows for sure). Hmmm Reminds me that I have some bare solar cell elements from when Motorola was making them. I used some to power a small radio controlled car. I do know that all good applications have a regulator to make sure the charging is done properly
Q:When I make a solar panel what kind...?
You can make your own solar and wind power for less than $200. You can your power bill by making your own solar panels. You can save thousands of dollars and go green at the same time. 93.9% of the energy that is consumed by US is NOT from renewable sources. The best choices when it comes to home power are solar and wind power. These count for only 0.2% of the energy that is consumed. You can generate your own energy and send it on the power grids. If you don't use all the energy you produce the power company will pay you.
Q:Solar Panel System at Harbor Freight?
Solar Panel through charge controller to battery, battery to inverter, inverter to devices. a 75 watt panel would be enough to trickle charge a battery that is NOT being used to keep it at full charge. The average home requires 4000 watts MINIMUM. This would require MANY, LARGER panels, charge controller, a battery stack, and at least LARGER inverter (preferably 2, 2000 watt inverters, unless you want to REALLY get expensive!)
Q:Can you make a Solar Panel Heater?
Absolutely. But I see your point about the Ohms law. I think you'd need technical schematics to get the raw details.
Q:where does the solar energy go to when it hits the solar panel?
Energy is conserved, meaning that no energy is lost. It has to go somewhere. So for solar panels, the main energy is electricity. The current that is produced by all of those silicon wafers is usually stored in DC batteries. Some of the energy from the sun is transferred into heat. Perhaps a Mechanical Engineer can better answer if any very minute expansion occurs from the sun. I would guess negligible.

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