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CNBM Polycrystalline Solar Panels for 20kw Rooftop Systems
Solar modules use light energy (photons) from the sun to generate electricity through the photovoltaic effect. The majority of modules use wafer-based crystalline silicon cells or thin-film cells based on cadmium telluride or silicon. The structural (load carrying) member of a module can either be the top layer or the back layer. Cells must also be protected from mechanical damage and moisture. Most solar modules are rigid, but semi-flexible ones are available, based on thin-film cells. These early solar modules were first used in space in 1958.
Electrical connections are made in series to achieve a desired output voltage and/or in parallel to provide a desired current capability. The conducting wires that take the current off the modules may contain silver, copper or other non-magnetic conductive transition metals. The cells must be connected electrically to one another and to the rest of the system. Externally, popular terrestrial usage photovoltaic modules use MC3 (older) or MC4 connectors to facilitate easy weatherproof connections to the rest of the system.
solar panels from 5W--300W, made of TAIWAN MOTECH brand cells,with CO in TAIWAN,Mono and Poly with VDE,IEC,CSA,UL,CE,ISO.
We import solar cells from Taiwan Motech brand, with this CO in taiwan and our CSA certification,we can still sell goods to Anti-dumping areas like USA. Our main products are solar panels, off grid and on grid solar home systems , solar street lighting systems, solar water heating system,solar pump,solar attic fan, solar DC LED lights and solar DC refrigerators.
Certificates : ISO, CE, VDE IEC, MCS, CSA-UL, CEC.
Delivery time: sample 10days, order 25-30days.
Payment term: T/T 30% as deposit, 70% before shipment. Or irrevocable L/C at sight.
Trade term: FOB Shenzhen or CIF destination seaport or Airport.
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.
IX.The certificate issued by international authority: UL, TUV, IEC, VDE, CE.
Quality and Safety
1. Rigorous quality control meets the highest international standards.
2. High-transmissivity low-iron tempered glass, strong aluminium frame.
3. Using UV-resistant silicon.
1. 10 years limited product warranty
2. 15 years at 90% of the minimal rated power output
3. 25 years at 80% of the minimal rated power output
Technical date :
Poly 156*156 cell ,60pcs . Power range from 230Wp-260Wp
Optimum Power Voltage(Vmp)
Optimum Operatige Current(Imp)
Open Circuit Voltage(Voc)
Short Circuit Current(Isc)
Number of Cell(pcs)
Name of Solar Cells
Size of Module(mm)
Cable & Connector Type
Pass the TUV Certificate
Weight Per Piece(KG)
Junction Box Type
Pass the TUV Certificate
±3%, or 0-3%
Front Glass Thickness(mm)
Temperature Coefficients of Isc(%)
Temperature Coefficients of Voc(%)
Temperature Coefficients of Pm(%)
Temperature Coefficients of Im(%)
Temperature Coefficients of Vm(%)
-40°C to +85°C
Surface Maximum Load Capacity
Allowable Hail Load
Bypass Diode Rating(A)
90% of 10 years, 80% of 25 years.
Standard Test Conditions
AM1.5 1000W/ 25 +/-2°C
carton or pallet
14 Pallets / 316pcs
25 Pallets / 700pcs
I..Will you focus on the safety of the goods during transportation?
Yes, Safety of the cargo is the primary element that we would consider on transportation.
II..How would guarantee the quality will meet the requirements of your clients?
Before shipment, we will have inspection for each batch of goods.
III..What certificates do you have?
IV..Can you do OEM according to clients’ requirements?
Yes, we have our own brand while we can provide OEM service.
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