LONGi, LR7-54HVH-475M
LONGi Hi-MO X10 Explorer 475 W
Back-contact (BC) panel at 475 W and 23.3% efficiency with a -0.26%/°C temperature coefficient. The series runs 475 to 490 W.
- Power
- 475 W
- Efficiency
- 23.3%
- Temp. coefficient
- -0.26%/°C
- Performance warranty
- 30 yrs
Our read of the datasheet
The Hi-MO X10 Explorer 475 W is the entry bin of LONGi's 475 W to 490 W back-contact series, at 23.3% efficiency; the 490 W top bin reaches 24.0%. Back-contact cells place the electrical contacts on the rear of the cell.
Its -0.26%/°C temperature coefficient is among the lowest in this guide, meaning less power lost per degree of cell heating than panels rated at -0.29%/°C. The power warranty guarantees 88.85% after 30 years, based on under 1% loss in year one and 0.35% a year after. Power tolerance is 0 to +3%.
At 1800 mm long it is 38 mm longer than the common 1762 mm size, which can matter on tight roof layouts. It is a single-glass panel with 3.2 mm front glass and weighs 21.6 kg. The product warranty is 15 years, shorter than several panels here.
We have not tested this panel. This summary follows from the manufacturer's published specifications, checked 23 September 2026.
Strengths
- -0.26%/°C temperature coefficient
- 88.85% power guaranteed after 30 years
- Positive-only power tolerance (0 to +3%)
Things to check
- 1800 mm length differs from the common 1762 mm size
- 15-year product warranty
Specifications
- Power
- 475 W
- Module efficiency
- 23.3%
- Cell type
- Back contact (BC) monocrystalline, 108 cells, single glass
- Temperature coefficient
- -0.26% per °C
- Product warranty
- 15 years
- Performance warranty
- 30 years
- Output at end of warranty
- 88.85% after 30 years
- Dimensions
- 1800 x 1134 x 30 mm
- Weight
- 21.6 kg
Compare with
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AIKO Neostar 2P 465 W
N-type back-contact (BC) panel at 465 W and 23.3% efficiency, 20.6 kg, -0.26%/°C. The Neostar 2P54 series runs 450 to 485 W.
- Power
- 465 W
- Efficiency
- 23.3%
- Temp. coefficient
- -0.26%/°C
Canadian Solar
Canadian Solar TOPHiKu6 450 W
N-type TOPCon panel at 450 W and 22.5% efficiency with a 25-year product warranty. The CS6.2-48TM series runs 435 to 470 W.
- Power
- 450 W
- Efficiency
- 22.5%
- Temp. coefficient
- -0.29%/°C
DMEGC Solar
DMEGC Infinity RT 475 W
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