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. Technical specifications for the JA Solar JAM66D45-635/LB: maximum power 635W, efficiency 24.05%, Vmp 40.9V, Voc 49.1V, Isc 16.21A. This Monocrystalline module carries a 30-year warranty.
🏭View all 312 JA Solar models Brand range: 165W–635W
Monocrystalline

JA Solar JAM66D45-635/LB

Max Power
635W
Efficiency
24.05%
Operating V
40.9V
Warranty
30Y
JA Solar JAM66D45-635/LB logo
Technical Specifications
Open Circuit Voltage (Voc)49.1V
Short Circuit Current (Isc)16.21A
Voltage at Pmax (Vmp)40.9V
Current at Pmax (Imp)15.51A
Temp. Coefficient of Pmax-0.317%/°C
Dimensions2087 x 1265 x 35 mm
Weight33.0kg
NOCT45.954°C
PTC Rating603.3W
📋 Data verified: June 2026 📄 Specs based on STC (1000 W/m², 25°C, AM 1.5) 🏷️ 312 JA Solar models in database

FAQ

What warranty does JA Solar provide?

JA Solar offers a 30-year warranty for the JAM66D45-635/LB, reflecting confidence in long-term durability.

What are the dimensions and weight of the JA Solar JAM66D45-635/LB?

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

What is the max power output of the JA Solar JAM66D45-635/LB?

The JA Solar JAM66D45-635/LB is rated at 635W under STC (1000 W/m², 25°C, AM 1.5).

How efficient is the JA Solar JAM66D45-635/LB?

This panel has 24.05% efficiency, which is high for commercial solar panels.

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This JA Solar model ranks among the brand's most efficient panels at 24.05%.

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