LONGi Solar 655Wp Hi-MO X10 LR7-72HVH – Monocrystalline

The LONGi Hi-MO X10 655W solar panel (LR7-72HVH-655M) is a monocrystalline BC-cell module with 24.2% efficiency. Choose it when you need maximum power from every square metre of roof space, in on-grid, hybrid or off-grid systems for homes and businesses across the UAE.

The Hi-MO X10 Scientist series combines TaiRay wafers with Back Contact (BC) technology: the electrical contacts sit on the rear of each cell. The front captures more light, and the module runs cooler than conventional panels — a real advantage in the Gulf climate. The result is higher yield in hot weather and a clean, uniform appearance.

LONGi Hi-MO X10 655W benefits

• More power per square metre — 655 W at 24.2% efficiency means fewer panels for the same installed capacity.
• Positive-only power tolerance (0~+3%) — you always get at least the rated nameplate power.
• Low degradation — under 1% in the first year and 0.35%/year in years 2–30; the module retains 88.85% of its power after 30 years.
• Extended warranty — 15 years for materials and workmanship, 30 years for linear power output.
• High mechanical strength — 5400 Pa front load, 2400 Pa rear load, hail-tested with 25 mm stones at 23 m/s.
• Cooler operation — BC cells and a Pmax temperature coefficient of -0.260%/°C limit heat losses in high ambient temperatures.

Technical specifications (STC)

• Maximum power (Pmax): 655 W (499 W at NOCT)
• Module efficiency: 24.2%
• Open circuit voltage (Voc): 54.00 V
• Short circuit current (Isc): 15.37 A
• Voltage at maximum power (Vmp): 44.66 V
• Current at maximum power (Imp): 14.67 A
• Cell configuration: 144 (6×24), monocrystalline BC
• Maximum system voltage: 1500 V DC (IEC)
• Maximum series fuse rating: 25 A
• Temperature coefficient of Pmax: -0.260%/°C
• Operational temperature: -40°C to +85°C
• Dimensions: 2382 × 1134 × 30 mm; weight: 28.5 kg
• Glass: 3.2 mm coated tempered glass; anodized aluminium alloy frame
• Junction box: IP68, three diodes; 4 mm² output cable
• Protection class: II; certifications IEC 61215, IEC 61730, UL 61730

Compatibility and applications

The panel works with common on-grid and hybrid inverters in strings up to 1500 V DC. Install it on pitched roofs, flat roofs or ground-mounted structures using the mounting systems available at EcoSolaris. At 2382 × 1134 mm, check your rail spacing before ordering: clamps attach on the long side, within the manufacturer-marked zone. One pallet holds 36 panels.

Frequently asked questions

What is the BC technology on the Hi-MO X10?
Back Contact: the electrical contacts are placed on the rear of the cell. The front stays fully active with no metal ribbons, so the panel captures more light and looks uniform.

What warranty does the panel carry?
15 years for the product (materials and processing) and 30 years for linear power output. After 30 years the module still delivers at least 88.85% of its initial power.

Is it suitable for commercial systems?
Yes. The 1500 V DC system voltage and 655 W output reduce panel count, cabling and installation time on medium and large plants.

How does it perform in extreme heat?
The Pmax temperature coefficient is -0.260%/°C, gentler than conventional modules — so you lose less production on hot days, a key factor in the UAE.

Need a quote for a complete system? The EcoSolaris team will help you size the array and choose the inverter and mounting system. Request a personalised offer and get a fast reply.