S SOLARSPECS
Designed for utility-scale solar farms, the JA Solar JAM66D45-620/LB combines 620W power output with 23.48% efficiency in a Monocrystalline form factor.
🏭View all 312 JA Solar models Brand range: 165W–635W
Monocrystalline

JA Solar JAM66D45-620/LB

Max Power
620W
Efficiency
23.48%
Operating V
40.2V
Warranty
30Y
JA Solar JAM66D45-620/LB logo
Technical Specifications
Open Circuit Voltage (Voc)48.5V
Short Circuit Current (Isc)16.13A
Voltage at Pmax (Vmp)40.2V
Current at Pmax (Imp)15.42A
Temp. Coefficient of Pmax-0.317%/°C
Dimensions2087 x 1265 x 35 mm
Weight33.0kg
NOCT45.954°C
PTC Rating589.0W
📋 Data verified: June 2026 📄 Specs based on STC (1000 W/m², 25°C, AM 1.5) 🏷️ 312 JA Solar models in database

FAQ

How efficient is the JA Solar JAM66D45-620/LB?

This panel has 23.48% efficiency, which is high for commercial solar panels.

What are the dimensions and weight of the JA Solar JAM66D45-620/LB?

It measures 2087 x 1265 x 35 mm and weighs 33.0kg.

What is the max power output of the JA Solar JAM66D45-620/LB?

The JA Solar JAM66D45-620/LB is rated at 620W under STC (1000 W/m², 25°C, AM 1.5).

What warranty does JA Solar provide?

JA Solar offers a 30-year warranty for the JAM66D45-620/LB, reflecting confidence in long-term durability.

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