S SOLARSPECS
JA Solar is one of the world's largest solar panel manufacturers, founded in 2005 and headquartered in Beijing, supplying modules for 100+ countries. The JA Solar JAM78D10-440/MB is a Monocrystalline solar module delivering 440W of rated power output with 20.47% module efficiency. Designed for small commercial installations, this panel brings reliable performance.
🏭View all 312 JA Solar models→ Brand range: 165W–635W
Monocrystalline

JA Solar JAM78D10-440/MB

Max Power
440W
Efficiency
20.47%
Operating V
44.7V
Warranty
25Y
JA Solar JAM78D10-440/MB logo
Technical Specifications
Open Circuit Voltage (Voc)53.0V
Short Circuit Current (Isc)10.37A
Voltage at Pmax (Vmp)44.7V
Current at Pmax (Imp)9.85A
Temp. Coefficient of Pmax-0.329%/°C
Dimensions1883 x 1142 x 35 mm
Weight26.9kg
NOCT45.36°C
PTC Rating417.9W
📋 Data verified: June 2026 📄 Specs based on STC (1000 W/m², 25°C, AM 1.5) 🏷️ 312 JA Solar models in database

FAQ

What is the max power output of the JA Solar JAM78D10-440/MB?

The JA Solar JAM78D10-440/MB is rated at 440W under STC (1000 W/m², 25°C, AM 1.5).

How long is the warranty for the JA Solar JAM78D10-440/MB?

The JAM78D10-440/MB comes with a 25-year product warranty covering defects and degradation.

What are the dimensions and weight of the JA Solar JAM78D10-440/MB?

It measures 1883 x 1142 x 35 mm and weighs 26.9kg.

How efficient is the JA Solar JAM78D10-440/MB?

This panel has 20.47% efficiency, which is above average for commercial solar panels.

Compare This Panel

Add this JA Solar JAM78D10-440/MB to compare specs side-by-side with other commercial solar panels.

📄 Download

Save this datasheet as PDF for offline reference.

Share

Advertisement
📊 Brand Context

JA Solar offers 312 solar panel models from 165W to 635W.

Browse all JA Solar models →
⚡ 0 to Compare