The base wattage tier of this heterojunction panel series, sharing the same cell technology, dimensions, and warranty structure as the 430W model at a lower power/efficiency point.
Key Specs
- Power Output: 400 W
- Panel Efficiency: 20.7%
- Cell Type: 80 half-cut heterojunction (HJT)
Performance
- Temp. Coefficient (Pmax): -0.24 %/°C
- Power Density: 207 W/m²
- Annual Degradation: 0.25%
Electrical
- Vmp / Imp: 48.8V / 8.20A
- Voc / Isc: 58.9V / 8.80A
Physical
- Dimensions: 1730 x 1118 x 30 mm
- Weight: 47.4 lbs
Warranty
- Typical Coverage: the manufacturer Alpha Pure-R and Pure-RX panels carry a Standard 20-year product warranty and 25-year power/performance warranty (98% power guaranteed in Year 1, 0.25% maximum annual degradation thereafter, at least 92% of nameplate power guaranteed through Year 25), with no labor coverage. Under the manufacturer ProTrust upgrade — available when panels are installed by the manufacturer Certified Solar Professional and registered — coverage extends to 25 years product, 25 years power, and 25 years labor.
- Eligibility: Warranty eligibility depends on purchase channel — our team confirms coverage for your specific order before you buy.
