S SOLARSPECS
LONGi Green Energy is the world's largest solar technology company by market capitalization, pioneering mono-crystalline silicon technology and the industry-standard Hi-MO series. The LONGi LR5-66HBD-490M is a Monocrystalline solar module delivering 490W of rated power output with 21.4% module efficiency. Designed for large-scale ground mounts, this panel brings reliable performance.
🏭View all 261 LONGi models→ Brand range: 270W–605W
Monocrystalline

LONGi LR5-66HBD-490M

Max Power
490W
Efficiency
21.4%
Operating V
38.1V
Warranty
25Y
LONGi LR5-66HBD-490M logo
Technical Specifications
Open Circuit Voltage (Voc)45.2V
Short Circuit Current (Isc)13.74A
Voltage at Pmax (Vmp)38.1V
Current at Pmax (Imp)12.87A
Temp. Coefficient of Pmax-0.321%/°C
Dimensions1944 x 1178 x 35 mm
Weight28.6kg
NOCT47.67°C
PTC Rating463.0W
📋 Data verified: June 2026 📄 Specs based on STC (1000 W/m², 25°C, AM 1.5) 🏷️ 261 LONGi models in database

FAQ

How efficient is the LONGi LR5-66HBD-490M?

This panel has 21.4% efficiency, which is high for commercial solar panels.

What is the max power output of the LONGi LR5-66HBD-490M?

The LONGi LR5-66HBD-490M is rated at 490W under STC (1000 W/m², 25°C, AM 1.5).

What are the dimensions and weight of the LONGi LR5-66HBD-490M?

It measures 1944 x 1178 x 35 mm and weighs 28.6kg.

How long is the warranty for the LONGi LR5-66HBD-490M?

The LR5-66HBD-490M comes with a 25-year product warranty covering defects and degradation.

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LONGi offers 261 solar panel models from 270W to 605W.

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