Home   |   PRODUCTS   |   Polycrystalline Solar Panel   |   100% OUTPUT 20W POLY SOLAR PANEL 




High quality raw materials, strict control system, advanced technology and testing equipment, fully test for each piece to make sure each piece extremely supper efficiency and long time usage----this is LONGSUN SOLAR can give to you.


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°


Module Warranty:
25-year limited warranty of 80% power output;
10-year limited warranty of 90% power output;
5-year limited warranty of materials and workmanship.

Main Features

100% output 20w poly solar panel


High cell efficiency with quality silicon materials for long term output stability and reliability.


High transmittance low iron tempered glass with enhanced stiffness and impact resistance.


Unique frame design with high mechanical strength for easy Installation.


Advanced encapsulation material with multiplayer sheet lamination to provide efficient protection from the severest environmental conditions.


Outstanding electrical performance under high temperature and low irradiance conditons.


Excellent performance in harsh weather,Outstanding electrical performance under high temperature and low irradiance.

Product picture

100% output 20w poly solar panel


Pmax, Voc, Isc, Vmp and Imp at Standard Test Condition (1000W/m2, 25±2°C, AM 1.5);All electrical specifications are +/-3%.

◆ Maximum Power (Pmax):20W

◆ Open Circuit Voltage (Voc):21.6V

◆ Short Circuit Current (Isc):1.23A

◆ Maximum Power Voltage (Vmp):18V

◆ Maximum Power Current (Imp):1.11A


Large or small on-grid or off-grid solar panel systems.

Commercial and industrial building roof-top solar panel systems

Residential roof-top solar panel systems

Commercial or industrial ground mounting solar panel systems

Other industrial or commercial applications


Quality Focused
“Making Reliable Products” is the core business fundamental of our company. We implement an IEC complied quality system in the production for the unique purpose: LONGSUN ONLY DELIVERS RELIABLE SOLAR PRODUCTS. For more details please refer to Perlight Quality Control System.


Customer-centric Services
LONGSUN SOLAR rounds out its service portfolio based on every customer’s demands, because we think the customer’s satisfaction is the motive force of growth for the company. Our skilled R&D engineers and customer support teams are always prepared to provide all-round services for our clients.


ISO Accredited Factory
With total area of 15000 m2, LONGSUN SOLAR manufacturing factory operates under the ISO 9001 and ISO 14001 accredited management systems, which ensure the outstanding quality of our solar products and therefore guarantee the benefits of our clients.


System-wide Solutions
In association with partners, LONGSUN SOLAR provides complete components for both on-grid and off-grid PV systems: from solar panels to batteries, combiner boxes, inverters, cables and mounting structures. This enables us to offer more customized PV solutions to our clients based on their various requests.

Payment Term




30% T/T in advance, paid the balance before shipment



 30% T/T in advance, paid the balance against copy of B/L



L/C amount above 50,000 usd, we can accept L/C at sight

West Union

 Amount lower than 5000usd

West Union

Delivery Time

7~10days after receiving payment for one container


1pcs per box( according to customer's requirements)

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