Trina Solar, TSM-475NEG9R.28
Trina Solar Vertex S+ 475 W
Dual-glass N-type i-TOPCon panel at 475 W and 23.8% efficiency, weighing 21.0 kg. The NEG9R.28 series runs 450 to 475 W.
- Power
- 475 W
- Efficiency
- 23.8%
- Temp. coefficient
- -0.29%/°C
- Performance warranty
- 30 yrs
Our read of the datasheet
The TSM-475NEG9R.28 is the top bin of Trina's Vertex S+ 450 W to 475 W series, at 23.8% efficiency in the common 1762 x 1134 mm size. It uses dual 1.6 mm glass with a black frame and, at 21.0 kg, is the lightest dual-glass panel in this group.
The 144-cell layout gives a higher voltage and lower current than 108-cell panels: 46.4 V and 10.24 A at maximum power. The lower current suits inverters with modest MPPT current limits, while the higher voltage means fewer panels fit in each string. Power tolerance is 0 to +5 W.
The datasheet lists a 25-year product warranty and a 30-year power warranty, with 87.4% of output after 30 years. This is Trina's EU edition of the datasheet, so confirm the Australian warranty terms with your installer.
We have not tested this panel. This summary follows from the manufacturer's published specifications, checked 23 September 2026.
Strengths
- 23.8% efficiency at 475 W
- Lightest dual-glass panel here at 21.0 kg
- 25-year product and 30-year power warranty
- Positive-only power tolerance (0 to +5 W)
Things to check
- Source datasheet is Trina's EU edition; confirm Australian warranty terms
- Higher string voltage means fewer panels per string
Specifications
- Power
- 475 W
- Module efficiency
- 23.8%
- Cell type
- N-type i-TOPCon monocrystalline, 144 cells, dual glass
- Temperature coefficient
- -0.29% per °C
- Product warranty
- 25 years
- Performance warranty
- 30 years
- Output at end of warranty
- 87.4% after 30 years
- Dimensions
- 1762 x 1134 x 30 mm
- Weight
- 21 kg
Compare with
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- Power
- 465 W
- Efficiency
- 23.3%
- Temp. coefficient
- -0.26%/°C
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- Power
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- Efficiency
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- Temp. coefficient
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DMEGC Solar
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All-black N-type dual-glass panel at 475 W and 23.8% efficiency, with a 25-year product warranty. The series runs 455 to 475 W.
- Power
- 475 W
- Efficiency
- 23.8%
- Temp. coefficient
- -0.29%/°C