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This sgpwosay sungoldpower ul61730 n type 32pcs vs sungoldpower ul61730 n comparison focuses on two high-output bifacial solar panels. Both models use N-type monocrystalline cells and offer dual-glass durability for off-grid systems. They share the same thickness and cell technology. The main difference lies in their power output and physical size. The first panel provides 450 watts, while the second delivers 590 watts. You need to weigh the higher energy yield of the larger panel against its increased weight and footprint.
Rated Wattage
450W
590W
Cell Efficiency
Up to 22.5%
Up to 22.8%
Weight
53.4 lbs
69.5 lbs
Length
69.4 inches
89.8 inches
Model
SGN-450
SGN-590
Choose the first if
- You have limited roof space or trailer weight capacity.
- You need a lighter panel that is easier to handle alone.
- Your energy demands are met by lower individual panel output.
Choose the second if
- You want maximum power generation from each panel.
- You have ample space to accommodate the longer dimensions.
- You can support the heavier weight of the larger unit.
Verdict
Choose the 450W model if weight and size are your primary constraints. The 590W model is better if you prioritize higher wattage and efficiency per panel. Both offer the same bifacial benefits and warranty terms.
SGPWOSAY UL61730 Panel Specs Compared
Rated Wattage
Edge: SUNGOLDPOWER 590W Bifacial Solar Panel
You get more power per panel with the SGPWOSAY SUNGOLDPOWER UL61730 N-type 31PCS model. It delivers a rated wattage of 590W. This is significantly higher than the 450W output of the SGPWOSAY 450W Bifacial Solar Panel. Both units use N-type monocrystalline cells to achieve these numbers. If your goal is to maximize energy production from a limited roof area, the higher wattage of the 31PCS version provides a clear advantage. You will need fewer panels to reach your total system target.
Cell Efficiency
Edge: SUNGOLDPOWER 590W Bifacial Solar Panel
The SGPWOSAY SUNGOLDPOWER UL61730 N-type 31PCS also leads in conversion efficiency. Its cells achieve up to 22.8% efficiency. In comparison, the SGPWOSAY 450W Bifacial Solar Panel reaches up to 22.5%. While the difference is small, higher efficiency means more electricity is generated from the same amount of sunlight. Both panels utilize 16BB technology and bifacial designs to capture light from both sides. This slight edge in efficiency supports the higher wattage rating of the 31PCS model.
Panel Dimensions
Edge: SGPWOSAY 450W Bifacial Solar Panel
Physical size varies between the two options. The SGPWOSAY 450W Bifacial Solar Panel measures 69.4 inches in length and 44.7 inches in width. The SGPWOSAY SUNGOLDPOWER UL61730 N-type 31PCS is larger, measuring 89.8 inches in length and 44.6 inches in width. Both share the same thickness of 1.4 inches. The 450W panel is more compact, which may be easier to handle during installation. The larger footprint of the 31PCS model requires more space but yields more power per unit.
Weight
Edge: SGPWOSAY 450W Bifacial Solar Panel
Weight differences affect how you handle and mount these panels. The SGPWOSAY 450W Bifacial Solar Panel weighs 53.4 pounds. The SGPWOSAY SUNGOLDPOWER UL61730 N-type 31PCS is heavier at 69.5 pounds. Both use dual-glass construction for durability against rough climates. The lighter weight of the 450W model makes it easier for two people to lift and position. The heavier 31PCS panel requires more care during installation due to its increased mass.
Warranty Coverage
Edge: Tie
Both panels offer identical warranty terms. The SGPWOSAY 450W Bifacial Solar Panel includes a 12-year materials and workmanship warranty. It also comes with a 30-year linear performance warranty. The SGPWOSAY SUNGOLDPOWER UL61730 N-type 31PCS provides the same 12-year and 30-year coverage periods. Both are ETL certified to UL 61730 standards and CEC listed. You get equal long-term protection regardless of which model you choose. This aspect is a tie for both buyers.
Which solar panel fits your needs
Need maximum power output
Our pick: SUNGOLDPOWER 590W Bifacial Solar Panel
The 590W model delivers significantly higher rated wattage than the 450W alternative. Its cell efficiency reaches up to 22.8%, allowing you to harvest more energy per panel. This higher output is ideal if you have limited roof space but require substantial power generation for your off-grid system.
Prefer lighter panels for handling
Our pick: SGPWOSAY 450W Bifacial Solar Panel
The 450W panel weighs only 53.4 pounds, making it much easier to lift and install than the 69.5-pound 590W unit. If you plan to handle the panels yourself or need a lighter option for portable off-grid setups, this lower weight reduces physical strain during setup and maintenance.
Want smaller footprint per unit
Our pick: SGPWOSAY 450W Bifacial Solar Panel
At 69.4 inches long and 44.7 inches wide, the 450W panel occupies less surface area than the 89.8-inch-long 590W model. If your installation area is constrained, this smaller physical footprint allows you to fit the panels more easily without requiring extensive structural adjustments or larger mounting spaces.
SGPWOSAY 450W Bifacial Solar Panel
Best for: High-efficiency off-grid solar arrays
- Rated Wattage
- 450W
- Cell Efficiency
- Up to 22.5%
- Cell Type
- N-Type 16BB Monocrystalline
- Weight
- 53.4 lbs
- Intended Use
- Off-Grid
- Recommended Use
- Off-Grid Systems
This 450W bifacial solar panel uses N-type monocrystalline cells to reach up to 22.5% efficiency. The dual-glass design captures additional energy from the rear side, potentially adding 30% power. It weighs 53.4 lbs and measures 69.4 by 44.7 inches. You get a 12-year warranty on materials and a 30-year linear performance guarantee. It suits off-grid setups where flexible mounting angles are useful.
- 450W rated wattage with 22.5% cell efficiency
- Bifacial design harvests up to 30% extra energy from the rear
- N-type 16BB monocrystalline cells for high durability
- 30-year linear performance warranty
- Heavier at 53.4 lbs compared to the 31PCS 590W alternative
- Lower total wattage output than the 590W option on the list
- You need high-efficiency N-type cells for limited roof space
- You want a bifacial panel to boost energy yield from reflected light
- You require a 30-year performance guarantee for long-term off-grid use
- You prioritize maximum total wattage over individual cell efficiency
- You need a lighter panel for easier manual installation
- You are comparing this against higher-output 590W bifacial models
Verdict: SUNGOLDPOWER 450W Bifacial Solar Panel fits users who value high cell efficiency and rear-side energy harvesting over raw wattage. It is a solid choice for off-grid systems where long-term performance warranties matter more than peak power output.
SUNGOLDPOWER 590W Bifacial Solar Panel
Best for: high-output off-grid installations
- Rated Wattage
- 590W
- Cell Efficiency
- Up to 22.8%
- Cell Type
- N-Type 16BB Monocrystalline
- Weight
- 69.5 pounds
- Intended Use
- Off-Grid
- Recommended Use
- Off-Grid Systems
This is a 590W bifacial solar panel using N-type monocrystalline cells. It reaches 22.8% efficiency and captures extra energy from the rear. The dual-glass design handles rough weather. It weighs 69.5 pounds and measures 89.8 by 44.6 inches. You can use it for off-grid systems. It fits well if you need high output in a single unit.
- 590W rated wattage
- 22.8% cell efficiency
- Bifacial dual-glass design
- N-type monocrystalline cells
- CEC Listed and UL61730 certified
- Heavier at 69.5 pounds
- Lower 590W output than the 450W alternative
- Larger 89.8-inch length
- You need high power output
- You want bifacial energy harvesting
- You plan an off-grid setup
- You prefer lighter panels
- You need smaller dimensions
- You want the 450W model
Verdict: SUNGOLDPOWER 590W N-Type Bifacial Panel suits buyers who prioritize maximum wattage and rear-side energy capture for off-grid needs.
Specifications side by side
| Spec | SGPWOSAY 450W Bifacial Solar Panel | SUNGOLDPOWER 590W Bifacial Solar Panel |
|---|---|---|
| Rated Wattage | 450W | 590W |
| Cell Efficiency | Up to 22.5% | Up to 22.8% |
| Cell Type | N-Type 16BB Monocrystalline | N-Type 16BB Monocrystalline |
| Weight | 53.4 lbs | 69.5 pounds |
| Intended Use | Off-Grid | Off-Grid |
| Wattage | – | 590W |
| Recommended Use | Off-Grid Systems | Off-Grid Systems |
| Design | Bifacial | Bifacial |
| Dimensions | 69.4 × 44.7 × 1.4 inches | 89.8 × 44.6 × 1.4 inches |
| Size | 450W | – |
| Color | Black | Black |
| Model | SGN-450 | SGN-590 |
Frequently asked questions
Which panel is better for small off-grid setups?
The 450W model suits smaller systems. Its compact dimensions of 44.7 by 69.4 inches fit tighter spaces. The 53.4-pound weight is easier to handle than the larger 69.5-pound alternative. You get reliable N-type cell efficiency without requiring extensive mounting hardware for heavy loads.
Do both panels use the same cell technology?
Yes, both units utilize N-type monocrystalline cells. This technology offers high efficiency and good performance in low-light conditions. The bifacial design on both models allows them to capture sunlight from the front and rear sides. This shared feature ensures consistent energy harvesting in various off-grid environments.
How much space does the larger panel take up?
The 590W panel measures 89.8 inches in length. It is significantly longer than the 450W model, which is 69.4 inches long. Both share a similar width of roughly 44.6 inches. You need ample roof or ground space to accommodate this extended length for optimal sun exposure.
Is the thicker glass a benefit for durability?
Both panels feature a bifacial design with dual-glass construction. This structure provides enhanced durability against harsh weather conditions. The consistent 1.4-inch thickness across both models ensures structural stability. You benefit from long-term reliability, which is crucial for off-grid systems that must withstand outdoor elements year-round.
Can I use these panels for portable power stations?
These panels are designed for off-grid systems. Their high wattage outputs of 450W and 590W make them suitable for charging large battery banks. You can connect them to compatible portable power stations or solar charge controllers. The N-type cells ensure efficient energy conversion even when sunlight is indirect.
What is the weight difference between the two models?
The 450W panel weighs 53.4 pounds. The 590W model is heavier at 69.5 pounds. This 16.1-pound difference matters if you plan to move the panels frequently. The lighter 450W unit is easier to transport and install, while the heavier 590W unit prioritizes maximum power output over portability.
Do these panels work well in cloudy weather?
N-type monocrystalline cells perform better in low-light conditions. Both models leverage this technology to maintain efficiency when clouds pass overhead. The bifacial design also captures reflected light from the ground or surrounding surfaces. This combination helps you generate consistent power even during overcast days in off-grid locations.
