Solar panel GWL/Sunny Poly 285Wp 60 cells (ESP285 - Pack 4 pcs)

Manufacturer: GWL/Power
Art.#: GWL/Sunny-285PW-4
285.88$Price without VAT:
71.47$ Price per piece :
Stock status : 24 pcs
Next delivery:
October 2020 (free for orders)

Individual pricing for large scale projects and wholesale demands is available.
Contact us:
phone: +420 277 007 550

Shipping weight: 94.90 kg
Pack of 4 unit Polycrystalline photovoltaic panels 285Wp. High efficiency 17,5%. Busbar: Silver. All panels are 100% new products, llegally imported and approved for distribution in European Union.

Technical information

Complete datasheet
Maximum Power (Pmax) is 285Wp
Cell technology is Poly crystalline
Module efficiency is 17,5%
Open Circuit Voltage (Voc) is 38,3V
Number of Solar cells is 60
Color of the frame is White
Weight is 17,5kg
Dimmensions are 1640 * 992 * 35mm
Connection cable with MC4 connector and 90cm lenght

Polycrystalline photovoltaic panel GWL/Sunny-285PW with peak power of 285Wp excels with unified design (frame, covered busbars, cells). The panel offers excellent power output throughout the complete sun spectrum, its durable frame, and structure is capable of holding heavy snow load up to 5400 Pa and Wind load up to 3800 Pa. The panel is resistant to salt mist, ammonia, and blowing sand and therefore suitable for seaside, farm, or desert areas. The junction box is enclosed in the IP65 protective casing increasing its long term weather resistance.

FAQ Do you have technical question? Try our blog.

Power output characteristics - temperature and irradiance

Solar panels are fed by direct Sunlight, however, they perform better in colder ambient temperatures. All Datasheet values are measured under standardized 25°C. The graf shows the behavior of the panel in warmer areas. Panel losses part of its output efficiency, but is well suited even for extremely hot areas.

Panel behaviour under different Temperature

Like with temperature, the Datasheet values are stated at standardtized value of irradiance at 1000 W/m2, to roughly calculate actual power output in your area, find the avarage irradiance and compare with the graf.

Panel behaviour under different irradiance

30 years Warranty

The manufacturer (Einnova Solarline) provides up to 30 year Warranty for remaining Power output. The warranty is calculated lineary year by year.

The warranty in detail:

  • 12 years Product Workmanship warranty
  • 12 years Minimum 92% Power Output
  • 30 years Minimum 83% Power Output

The long warranty period is possible by quality inspection and testing during production. The manufacturer hosts testing laboratory used to confirm TUV,Ul,CSA,ETL,SGS and CGC certifications. They also use this laboratory to ensure their product meet the highest standards.

  • All panels tested one by one during production
  • The production process inspected and monitored
  • Verified parameters recorded for customer reference
  • Fast replacement of defective products
  • Insurance from global insurance company
30 years linear warranty

Certifications and quality tests

The GWL/Sunny panels are in compliance and have undergone testing for a full range of related certifications.
Including: CE, TÜV Rheinland, TÜV SÜD, UL certification (USA), JET (Japan), MCS (United Kingdom).
Furthermore, the Panels are produced in accordance to global guidelines and meet ISO and OHSAS standards.

Solar panel Certifications and Tests

Efficiency, Reliability, Safety and Ecology

High efficiency of Solar panel

High Efficiency

Solder-coatingless cells
Fine Grid Electrodes
BSF (Black surface field) structure
Anti-Reflective coating
Black film reflected light
High-Transmittance Glass
High Power Output in Actual use

High durability of Solar panel

High Safety

Triple-layer structure junction box
Highly reliable bypass diode
Lock Mechanism Equipped connectors
Conformity with IEC 61215, IEC 61730 Standards

High reliability of Solar panel

High Reliability

Original derating designing concept
Straight tabs
Double-Sided indeptended tabs
Reliable Bus bar
Corrosion resistance of the frame
High tensile strenght structure
Tempered glass
Triple-layer structure back film

High ecology of Solar panel


Lead-free solder PV module
Manufactured in the plant certified ISO14001
Recyclable steel pallets

Weight (kg) 72 + packing
Connector MC4
Peak power (Wp) 285
MPP voltage (V) 31,5
MPP current (A) 9,05
Voltage without load (V) 38,3
Short-circuit current (A) 9,49
Efficiency of solar panel (%) 17,5
Max. compressive load (Pa) 5400
Height (mm) 1640
Width (mm) 992
Depth (mm) 35
Width of cell (mm) 156
Height of cell (mm) 156
Number of cells 60
Solar panel GWL/Sunny Poly 285Wp 60 cells (ESP285 - Pack 4 pcs) Pack of 4 unit Polycrystalline photovoltaic panels 285Wp. High efficiency... 285.88$
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