
Trina Solar • trina solar vertex s+ tsm neg9r.25-425-450w
trina solar vertex s+ tsm neg9r.25-425-450w 445445W
Key Features
- Small in size, bigger on power
- Light Dual-glass Design
- Ultra-low Degradation, longer warranty, higher output
- Universal solution for residential and C&I rooftops
- Boost performance in warm weather with low temperature
- Less prone to micro-cracks and scratches on the back side
- First-year degradation 1% and annual degradation at 0.4%
- Up to 25 years product warranty and 30 years power warranty
- Easy for integration, designed for compatibility with existing mainstream inverters and diverse mounting systems
- Perfect size and low weight for handling and installation
- Most valuable solution on low load capacity rooftops (weight similar to backsheet version)
- Mechanical performance up to 5400 Pa positive load and 4000 Pa negative load
- Up to 450W,22.5% module efficiency with high density
- Reduce installation cost with higher power bin and efficiency coefficient and operating temperature
- Excellent fire rating, weather resistance, salt spray, sand dust
- Outstanding Visual Appearance
- Designed with aesthetics in mind
- Inheriting Trina Solar awards-winning full black design
- Thinner wires that appear full black at a distance
Trina Solar 445 Panels: What Your System Looks Like
Based on a standard 10kW residential installation
Electrical Data (STC)
Mechanical Data
Temperature Ratings
Similar Products
Will These Panels Fit Your Roof?
Don’t guess your solar potential. Our Roof Layout Designer uses the exact dimensions of the Trina Solar 445 (445W modules) to map out your system. Visually plan your array to see exactly how many modules your roof can support based on its specific footprint.
Ideal Use Case
The Trina Solar 445 is designed for specific solar energy applications. This panel is an excellent choice if you:
Don’t guess your solar setup — calculate it first!
Take our Solar Quiz to get a personalized recommendation for panels, inverter, battery capacity, and system size — before you spend money on the wrong setup.
Product FAQ
How many Trina Solar 445 panels do I need for my home?
The number of panels depends on your energy consumption and roof area. At 445W per panel, a typical 10kW residential system requires about 23 modules. Use our Solar Roof Calculator to get a precise layout based on your actual roof dimensions.
What is the efficiency of Trina Solar 445?
This panel has an efficiency of 22.3%, using PERC cell technology. Higher efficiency means more electricity per square meter, which is especially valuable when roof space is limited.
What are the dimensions of the Trina Solar 445?
The module dimensions are 1762mm × 1134mm × 30mm. Always account for these measurements plus fire setbacks and mounting clearances when planning your solar layout.
Is Trina Solar 445 compatible with standard inverters?
Yes, these panels work with most string and hybrid inverters. However, you must check the Voc (Open Circuit Voltage) and Imp (Current at Max Power) against your inverter's MPPT specs.
What warranty does the Trina Solar 445 come with?
This panel includes a 15-year product warranty from Trina Solar. Solar panels typically degrade about 0.4–0.5% per year, meaning this module should retain over 87% of its original output after 30 years.

