MonocrystallinePERC
LONGi Solar undefined LR8-66HYD-670M

LONGi Solar • hi mo 9 lr8-66hyd 635~670m

LR8-66HYD-670M670W

PERC
Region:China
Region shows where the seller or factory is located. Most ship globally, and all listed suppliers should be able to ship to your current location.
670W
Power Output
24.8%
Efficiency
2382 x 1134
Dimensions (mm)
12 Yrs
Product Warranty
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Key Features

  • Products for utility with optimal power generation through the entire lifecycle
  • Performance improvement leads to a more than 6.5% power generation gain
  • TaiRay wafer & BC technology enhances high product reliability
  • Smart manufacturing & LONGi product lifecycle standards deliver exceptional product quality

LONGi Solar LR8-66HYD-670M Panels: What Your System Looks Like

Based on a standard 10kW residential installation

10kW System Size
15 Panels
Estimated Roof Area
441 sq.ft. (41 m²)
Avg. Yearly Production
11,500 kWh
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Electrical Data (STC)

Maximum Power (Pmax)670 W
Module Efficiency24.8 %
Voltage at Pmax (Vmp)41.38 V
Current at Pmax (Imp)16.19 A
Open Circuit Voltage (Voc)50.12 V
Short Circuit Current (Isc)16.86 A

Mechanical Data

Dimensions2382 x 1134 x 30 mm
Weight33.5 kg
Cell TypeMonocrystalline
Number of Cells132
Front Glass2 mm
FrameAnodized Aluminium

Temperature Ratings

Temperature Coefficient of Pmax-0.26 %/°C
Temperature Coefficient of Voc-0.2 %/°C
Temperature Coefficient of Isc0.05 %/°C
Operating Temperature Range-40 - 85 °C

Similar Products

1134 x 2382 mm
Roof Fit Tool

Will These Panels Fit Your Roof?

Don’t guess your solar potential. Our Roof Layout Designer uses the exact dimensions of the LONGi Solar LR8-66HYD-670M (670W modules) to map out your system. Visually plan your array to see exactly how many modules your roof can support based on its specific footprint.

Precision Layout Preview: See exactly how the 670W modules sit on your roof.
Accurate Technical Spacing: Factors in real-world gaps and mounting rails.
Instant System Sizing: Automatically calculates total kW output for this specific panel.
Optimization Tips: Suggestions to maximize your roof’s energy density.
Map This Panel on My Roof

Ideal Use Case

The LONGi Solar LR8-66HYD-670M is designed for specific solar energy applications. This panel is an excellent choice if you:

Require ultra-high output 670W panels for commercial installations
Maximize energy output in limited space (24.8% efficiency)
Want proven monocrystalline technology for better performance
Install on commercial buildings with ample roof space
Install in hot climates (low temperature coefficient)

Don’t guess your solar setup — calculate it first!

Take our Solar Quiz to get a personalized recommendation for panels, inverter, battery capacity, and system size — before you spend money on the wrong setup.

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Product FAQ

How many LONGi Solar LR8-66HYD-670M panels do I need for my home?

The number of panels depends on your energy consumption and roof area. At 670W per panel, a typical 10kW residential system requires about 15 modules. Use our Solar Roof Calculator to get a precise layout based on your actual roof dimensions.

What is the efficiency of LONGi Solar LR8-66HYD-670M?

This panel has an efficiency of 24.8%, using PERC cell technology. Higher efficiency means more electricity per square meter, which is especially valuable when roof space is limited.

What are the dimensions of the LONGi Solar LR8-66HYD-670M?

The module dimensions are 2382mm × 1134mm × 30mm. Always account for these measurements plus fire setbacks and mounting clearances when planning your solar layout.

Is LONGi Solar LR8-66HYD-670M compatible with standard inverters?

Yes, these panels work with most string and hybrid inverters. However, you must check the Voc (Open Circuit Voltage) and Imp (Current at Max Power) against your inverter's MPPT specs.

What warranty does the LONGi Solar LR8-66HYD-670M come with?

This panel includes a 12-year product warranty from LONGi Solar. Solar panels typically degrade about 0.4–0.5% per year, meaning this module should retain over 87% of its original output after 30 years.