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Sino Green SG420J BP SX20U 20W Solar Panel

Model Number: SG420J
STC Rating: 20.0
Module Cell Type: Monocrystalline
Payment Terms: TT , LC , Others
Model NumberSG420J
STC Rating20.0
Module Cell TypeMonocrystalline
Payment TermsTT , LC , Others
Model Number SG420J
STC Rating 20.0
Module Cell Type Monocrystalline
Open Circuit Voltage (V) 21.0
Short Circuit Current (A) 1.29
Frame Color Silver
Origin Hong Kong
Power % ± -10/10
(W/ft²) 8.30
Module Efficiency 9.4%
Area (ft²) 4.8
Weight (lbs) 13.2
Length (in) 33.00
Width (in) 21.10
Height (in) 2.0

Sino Green SG420J BP SX20U 20W Solar Panel

The SG420J 20 Watt solar panel is part of Sino Green's rugged industrial off grid series. 

These high quality solar modules provide cost-effective photovoltaic power for DC battery charging systems. 

With 36 monocrystalline cells in series, this panel charges batteries efficiently in any climate.

The SG420J is a BP SX solar panel replacement intended for 12VDC solar battery charging systems (charge controller required). 

It may be wired in series for higher nominal voltages. It is ideal for longevity outdoors; with an anodized aluminum frame and tempered glass face.

The SG420J is approved for applications in NEC Class 1, Division 2 Groups A, B, C & D hazardous locations and approved for explosion resistance. 

This certification is required near gas and oil pipelines.

The SG420J is Built to Last

From mountaintops to vast oil fields, on weather stations in the bitter cold of Antarctica and on telephone signal repeaters 

in the hot Australian outback, the technology behind these reliable solar panels has been proven in the harshest environments.

The SG420J has has a weatherproof junction box and a very rugged frame. The standard terminals accept 8 AWG to 14 AWG wire. 

The raintight (IP65 Rated) junction box of the SG420J accepts PG13.5 or 1/2" nominal conduit or cable fittings. 

With its four-terminal connection block, it enables most system array connections (putting modules in series or parallel) 

to be made right in the junction box. Simiar to the BP SX-20U.

Remote Industrial Applications:

Oil and gas metering

Microwave Repeaters

Two Way Radio & Microwave

Class I Div 2 Solar Systems for oil/gas


Security cameras

Cellular Repeaters & Enhancers

Water metering

Security & Area Lighting

Obstruction lights

ISO 9001 Certified:

ISO 9001 factory certification ensures that our manufacturing facilities use 

proven manufacturing and control processes.

Approval Listings and Qualifications:

Certified according to the extended version of the IEC 61215 (ed. 2), EC 61215:2005-08 

(Crystalline silicon terrestrial photovoltaic modules - Design qualification and type approval)


Certified according to IEC 61730-1 and IEC 61730-2 (ed. 1), EN 61730-1:2007-05 and EN 61730-2:2007-05. 

(photovoltaic module safety qualification, requirements for construction and testing).


Listed to UL 1703 & ULC ORD-C1703 Standard for Safety by Intertek ETL.

Class C Fire Rating.


Approved by Intertek ETL according to FM 3611, Dec 2004, and according to CAN/CSA C22.2 No. 213-M1987, 

1st Edition, Reaffirmed 2004, for use in a Class I Division 2, Group A, B, C, D Hazardous (Classified) Location.

SG420J PV Module Warranty

Free from defects in materials and workmanship for 2 years

90% Min power output for 12 years

25 year warranty optional

*Refer to limited warranty certificate for terms and conditions

SG420J BP SX20U Equivalent Solar Panel Review

Weathertight Conduit Ready Junction Box

This conduit ready J-type junction box has accessible terminals for easier module interconnections in off-grid solar PV systems. 

It features cable glands that allow for fitting of various cable sections. Gaskets are included. 

The box is securely attached to the module frame wall for added durability.

Durable Frame and Backsheet

This solar module features a rugged weatherproof anodized aluminum frame for longevity in high-wind conditions. 

The thick, durable, scratch resistant backsheet provides extra insulation for increased protection against the elements and rough handling. 

The white polyester backsheet material lasts the life of the module and increases energy production.

High Reliability

Cell interconnections and diode placement use well-established industry practices and are field-proven to provide excellent reliability.

Pre-drilled Mounting Holes

The anodized aluminum frame features clean pre-drilled mounting holes for solid grounding and attachment to the PV module mount.

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Sino Green New Energy Tech Co Ltd