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Nanjing KingSun Solar Technology Co., Ltd.

Solar Panel, Solar Module, Solar Power manufacturer / supplier in China, offering 280W-310W Polycrystalline Silicon Solar Panel, 295W High Efficiency Factory Made Mono Solar Panel, Poly-Crystalline Solar Panel 295W and so on.

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280W-310W Polycrystalline Silicon Solar Panel

FOB Price: US $0.42 / Piece
Min. Order: 10 pcs
Min. Order FOB Price
10 pcs US $0.42/ Piece
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Production Capacity: 8MW/Month
Transport Package: Standard Export Carton Packaging
Payment Terms: L/C, T/T, Paypal, Western Union

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Basic Info
  • Model NO.: KSP280 - KSP310
  • Front Glass: Low Iron High Transmisson,Tempered Glass
  • Specification: KSP280 - KSP310
  • HS Code: 85414020
  • Size: 1956*992*50mm
  • Trademark: KingSun
  • Origin: Nanjing China
Product Description


Low voltage-temperature coefficient allows higher power output at high-temperature condition High efficient, high reliable solar cells ensure our product output stability


Manufactured in an TUV certificate, ISO 9001:2008 certified plant
High efficiency, high safety, high reliability
Output power tolerance of +/-3%
25-year limited warranty on power output, 5-year limited warranty on materials and workmanship

Why choosing KINGSUN

1) Excellent quality, competitive price, prompts delivery, on-time service and good reputation.
2) Fast sample delivery
3) Low minimum order
4) Fast shipment in 15~20 days on receipt of your payment.
5) We handle all the components needed for utility-connected systems, or for powering independent homes and remote industrial sites.
6) We offer knowledgeable tech support before and after the sale.
7) We manufacture the complete line of solar modules ranging from 3w to 300w with CEC, TUV, and CE approval, offering the full spectrum sizes,solar panels are as efficient as other competitors, but far cheaper-without skimping on quality.

Components & Mechanical Data

Junction Box in proof-water with TUV Certificate
Bypass Diode Rated 15A
Solar Cable & Connector: 4 m² with MC4 connector with TUV Certificate

1.Toughed Glass: The glass is super white cloth grain of toughened glass , the thickness of 3.2mm , the solar cell spectral response range of wavelengths (320-1100 nm), light transmittance over 91% , Ultraviolet light radiation , light transmittance is not falling . Toughened glass is made of components can withstand 25 mm in diameter of hockey hit at a speed of 23 m/s.
2. EVA: 0. 5 mm thickness with high quality EVA film as sealant of solar cell and and the connection between the glass, TPT agent. With high light transmittance and anti-aging ability. Solar cell encapsulation of EVA film after curing performance requirements:
Light transmittance is greater than 90% ; Crosslinking degree is more than 65-85% ; Peel strength (N/cm), glass/film is more than 30 ; TPT/film is more than 15 ; Temperature resistance , high temperature 85° C , low temperature - 40° C .,
3. TPT Back-Sheet: the back of the solar panel, ageing resistance , corrosion resistance , resistance to ultraviolet radiation, airtight, etc. Basic requirements.
4. Frame: aluminum alloy frame with high intensit , mechanical shock resistance ability

Strong, lightweight aluminum frame design with reinforced sealing and load hold to prevent freezing and warping, and stand against high wind.

Under Standard Test Conditions(STC): Irradiance of 1000W/m2, Am1.5 and 25º C cell temperature
Operating Temperature: -40 ~ +85° C
Storage Temperature: -40 ~ +85°


Solar modules can be designed according to client' s specific requirements.


280W-310W Polycrystalline Silicon Solar Panel

280W-310W Polycrystalline Silicon Solar Panel

Type KSPKSP280KSP285KSP290KSP295KSP300KSP305KSP310
Max-Power                    Pm(W) 280285290295300305310
Module Power Range   (W) 285>Pm≥280 290>Pm≥285 295>Pm≥290 300>Pm≥295 305>Pm≥300 310>Pm≥305 315>Pm≥310 
Power Tolerance           (W) +0~+5 +0~+5 +0~+5 +0~+5 +0~+5 +0~+5 +0~+5  
Max-Power Voltage     Vm(V)
Max-Power Current     Im(A) 7.767.888.
Open-Circuit Voltage  Voc(V) 44.544.644.744.844.950.050.1
Short-Circuit Current  Isc(A) 8.288.398.508.618.728.838.94
Cell Efficiency                (%) 18.018.318.618.919.218.518.8
Module Efficiency          (%)14.614.915.115.415.615.916.1
Max-System Voltage   (VDC) 1000V(IEC) 
Max.Series Fuse            (A) 15
Pm Temperature Coefficients  (%/ºC)-0.4677
Isc Temperature Coefficients  (%/ºC) 0.0492
Voc Temperature Coefficients (%/ºC)-0.3374
NOCT Nominal Operating Cell Temperature 45±2ºC
Maximum load rating5400Pa

Dielectric Insulation Voltage 3000V 
Operating Temperature ºC-40~+85 
Storage Temperature (ºC) -40~+85 

Cable type, Diameter and Length 4mm2, 900mm , TUV certified
Type of ConnectorCompatible 
Number, type and arrangement of cells 72pcs, (6×12) Poly-Crystalline Silicon
Cell Size            156×156 (mm) 
Dimension         1956×992×50  (mm) 
Weight            26   (Kg) 
No.of Draining Holes in Frame 10
Glass, Type and Thickness High Transmission, Low Iron, Tempered Glass 4.0mm 
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Mr. Aiwah Tsou
Sales Director
To: Mr. Aiwah Tsou

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