AeternaSol 400W N-Type 18BB Mono Solar Panels (2×), 25% High Conversion Efficiency, IP68 Waterproof, 12V/24V Battery System for RV, Marine, Farm, Off-Grid Homes

AeternaSol 400W Solar Kit includes 2 premium N-Type 18BB monocrystalline 200W panels. It supports 12V (parallel/single-panel) and 24V (series) systems, with quick installation, stable output and strong low-light performance.
Q: Is it normal that actual power is lower than labeled 200W?
A: Yes. The 200W rating is tested under STC lab standards. Real factors like temperature, sunlight angle, shade and line loss reduce output. Power decreases 0.3%-0.5% per °C over 25°C, so lower real power is typical.
Q: Why lower power with PWM charge controller vs MPPT?
A: MPPT tracks the maximum power point to collect more energy. Ordinary PWM cannot optimize output and wastes power. We recommend using an MPPT controller for better efficiency.
Q: How to set the mounting angle for maximum power?
A: Annual optimal tilt ≈ local latitude ±5~10°. Lower angle for summer, higher for winter. Face panels toward the south.
brand:AeternaSol
Solar panel type: N-Type Monocrystalline
Electrical current:DC
Dimensions:52.76×26.38×1.18 inch
Two panels Weight:39.24lb
Color:Black
Material:Monocrystalline Silicon
Rec. use:Garden, Boat, RV, Roof, Walkway, Etc