MonocrystallineBifacialTOPConN-type
LONGi Solar undefined LR7-54HJD-510M

LONGi Solar • ecolife lr7-54hjd 495-510m

LR7-54HJD-510M510W

BifacialTOPConN-type
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.
510W
Power Output
25%
Efficiency
1800 x 1134
Dimensions (mm)
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Key Features

  • Leading Module Efficiency 25.0%
  • 70% Output Maintained when Shaded
  • Anti Shading
  • High Wind Resistance Loading 6000/3600Pa
  • 60℃+ Lower Temperature under Shade Prevent Overheating
  • 30-Year Power Warranty
  • 25.0% MAX MODULE EFFICIENCY
  • 0~3% POWER TOLERANCE
  • BC-CELL
  • LOWER OPERATING TEMPERATURE
  • <1% FIRST YEAR POWER DEGRADATION
  • 0.35% YEAR 2-30 POWER DEGRADATION
  • Junction Box IP68
  • Frame Black anodized aluminum alloy frame
  • Weight 23.5kg
  • Dimension 1800×1134×30mm
  • Packaging 36pcs per pallet / 216pcs per 20’GP / 864pcs per 40’HC
  • Double glass 2.0mm semi-tempered glass+1.6mm semi-tempered glass Glass
  • Mechanical Loading Front Side Maximum Static Loading 6000Pa
  • Rear Side Maximum Static Loading 3600Pa
  • Hailstone Test 25mm Hailstone at the speed of 23m/s
  • Protection Class Class II
  • Nominal Operating Cell Temperature 45±2℃
  • Maximum Series Fuse Rating 30A
  • Maximum System Voltage DC1500V (IEC)
  • Power Output Tolerance 0 ~ 3%
  • Operational Temperature -40℃ ~ +85℃
  • Fire Rating IEC Class C

LONGi Solar LR7-54HJD-510M Panels: What Your System Looks Like

Based on a standard 10kW residential installation

10kW System Size
20 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)510 W
Module Efficiency25 %
Voltage at Pmax (Vmp)34.37 V
Current at Pmax (Imp)14.84 A
Open Circuit Voltage (Voc)41.55 V
Short Circuit Current (Isc)15.52 A

Mechanical Data

Dimensions1800 x 1134 x 30 mm
Weight23.5 kg
Cell TypeMonocrystalline
Number of Cells108
Front Glass2 mm
FrameAnodized Aluminium, Black

Temperature Ratings

Temperature Coefficient of Pmax-0.24 %/°C
Temperature Coefficient of Voc-0.21 %/°C
Temperature Coefficient of Isc0.05 %/°C
Operating Temperature Range-40 - 85 °C

Similar Products

1134 x 1800 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 LR7-54HJD-510M (510W 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 510W 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 LR7-54HJD-510M is designed for specific solar energy applications. This panel is an excellent choice if you:

Want high-power 510W panels for better roof utilization
Maximize energy output in limited space (25.0% efficiency)
Seek cutting-edge technology with superior efficiency
Install in hot climates (low temperature coefficient)
Prefer sleek, all-black aesthetic design

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 LR7-54HJD-510M panels do I need for my home?

The number of panels depends on your energy consumption and roof area. At 510W per panel, a typical 10kW residential system requires about 20 modules. Use our Solar Roof Calculator to get a precise layout based on your actual roof dimensions.

What is the efficiency of LONGi Solar LR7-54HJD-510M?

This panel has an efficiency of 25%, using Bifacial, TOPCon, N-type cell technology. Higher efficiency means more electricity per square meter, which is especially valuable when roof space is limited.

Can I get more power from the bifacial LONGi Solar LR7-54HJD-510M?

Yes. Since this is a Bifacial module, it can capture sunlight from both sides. Depending on the reflectivity (albedo) of your roof surface, you can see a gain of 5% to 25% in total energy yield.

What are the dimensions of the LONGi Solar LR7-54HJD-510M?

The module dimensions are 1800mm × 1134mm × 30mm. Always account for these measurements plus fire setbacks and mounting clearances when planning your solar layout.

Is LONGi Solar LR7-54HJD-510M 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.