Efficiency leader, no clear weak spot
The Longi Solar Hi-MO X10 Scientist LR7-60HVH 535~560M series is designed to maximize energy yield from every square meter - especially in locations with limited roof space or where high power in a compact format is essential. A key feature is the application of back-contact (BC) technology in the enhanced HPBC 2.0 architecture, which translates to better performance under strong sunlight and an attractive, uniform front appearance without visible busbars. The modules utilize N-type cells, which help minimize power losses over time and maintain high efficiency for an extended operational lifespan. An additional benefit is the lower operating temperature, crucial during summer months and on roofs with poor ventilation - more energy reaches the inverter instead of being converted into heat. This series is suitable for residential and commercial installations, as well as projects requiring enhanced mechanical durability and flexible mounting methods while ensuring high reliability.
Ranking
Price offers
| Shop | Country | Price | Per kWp | Stock | Offer updated | Link to shop |
|---|---|---|---|---|---|---|
| PVhurt | Poland | 499.36 zł incl. VAT | 916.26 zł/kWp | Not stated | 4h ago | Visit shop |
| www.hlumar.sk | Slovakia | 117 € incl. VAT | 214.68 €/kWp | In stock | yesterday | Visit shop |
Signals from the data
Residential, commercial, utility-scale and hot-climate.
Top 4% of the N-type 500-550 W segment, against a median of 22.54%. Ranked 184th in the whole database.
Top 4% of the N-type 500-550 W segment, against a median of 225.3. Ranked 214th in the whole database.
Top 8% of the N-type 500-550 W segment, against a median of -0.290. Ranked 511th in the whole database.
Module efficiency of 23.7-24.8% (HPBC 2.0 back contact technology, N-type TaiRay cells) is roughly 2-3 percentage points higher than comparable 560 Wp modules (Exiom, Fellow Energy, Premier Energies - all around 21.7%). That's about 14% more power from the same roof area.
The Pmax temperature coefficient is -0.26%/°C, meaning less power loss at high operating temperatures than typical TOPCon modules (usually around -0.29 to -0.34%/°C). A real advantage in summer installations and on poorly ventilated pitched roofs.
The back-contact design with zero-busbar (0BB) technology eliminates visible metallization grids on the front, giving a uniform, dark appearance - important for residential installations where roof or facade aesthetics matter.
The linear power warranty covers a full 30 years, with degradation of ≤1% in the first year and ≤0.35%/year thereafter - better than the industry-typical 0.4-0.5%/year for PERC/TOPCon modules.
Longi Solar (founded in 2000) is a Tier-1 manufacturer per BNEF criteria, reducing counterparty risk over the 30-year power warranty horizon.
The product warranty is 15 years, while in 2026 most Tier-1 panels (including competing TOPCon lines) offer 25 years as standard. The gap between the 15-year product warranty and 30-year power warranty may raise customer questions.
The series is mono-facial only (is_bifacial: false), while some comparable 560 Wp modules (e.g., Premier Energies, dual-glass bifacial) offer additional albedo-driven yield - that option is not available here.
The HPBC 2.0-based series launched in 2024 - compared to mature PERC/TOPCon technologies, long-term field data is more limited, even though back-contact technology itself is no longer experimental.
- Efficiency of 24.2% is 1.7pp above the N-type 500-550W median (22.5%)
- At 241.5 W/m² power density, this panel generates 16.2 W/m² more per unit area than N-type 500-550W median (225.3 W/m²)
- At -0.26%/°C (vs median -0.29%/°C), loses ~1% less power in hot conditions
- Weight of 25.0 kg (1.2 kg below N-type 500-550W median of 26.2 kg) allows easier transport and roof mounting
- In the top 1% for efficiency among all N-type panels
Specifications
Datasheet charts
Measured curves published by Longi Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 545 Wp appear here. The rest cover the whole series.
Simulations
Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.
Found 86 panels of the same or similar size to this one, within ±10 mm. See them here Found 94 panels of the same or similar size to this one, within ±25 mm. See them here Found 588 panels of the same or similar size to this one, within ±50 mm. See them here Found 1466 panels of the same or similar size to this one, within ±100 mm. See them here