Light for its output, no clear weak spot
High-performance premium modules designed for maximum yield from the same surface area - especially where every square meter of roof matters or installation space is limited. The key advantage is the HPBC 2.0 back-contact technology, which moves metalization to the rear side, improving light utilization and front-side aesthetics. In practice, this means higher energy yields in real-world conditions, not just in the lab.
The series features n-type solutions and optimized passivation, resulting in more stable performance and less susceptibility to degradation over time. Additionally, the 0BB (zero busbar) structure reduces current transmission losses and supports the longevity of connections. The optimized performance under shading conditions also deserves attention, minimizing losses in typical urban scenarios (chimneys, trees, window frames).
This is an excellent choice for C&I installations, rooftop farms, and projects where high performance, reliability, and long-term profitability are key priorities.
Ranking
Signals from the data
Commercial, utility-scale, shaded-installations and hot-climate.
Top 3% of the N-type 600-650 W segment, against a median of 52.8. Ranked 560th in the whole database.
Top 4% of the N-type 600-650 W segment, against a median of -0.290. Ranked 515th in the whole database.
Top 12% of the N-type 600-650 W segment, against a median of 227.7.
Moving cell metallization to the rear eliminates visible busbars on the front, reducing grid-shading losses and improving aesthetics - the series reaches up to 24.8% efficiency in top variants, while the 630-635 Wp variants achieve 23.3-23.5%, matching the best peer comparable (Sunpro Power at 23.51%) and clearly outperforming Talesun and RedSolar (22.72% each).
Longi guarantees only 1% degradation in year one and 0.35% linear annual degradation thereafter, resulting in 88.85% of rated power after 30 years. This is a notably stronger degradation profile than the standard 25-year warranties with ~84.8% retention offered by many TOPCon competitors.
The soft-breakdown design cuts power loss under partial shading by up to 70% compared to standard TOPCon modules, translating into real-world yield gains for C&I installations on existing urban rooftops affected by chimneys, dormers, or trees.
Replacing traditional busbars with 0BB technology reduces current transmission losses and improves interconnect durability, supporting stable power output over the full 30-year service life.
Founded in 2000, Longi Solar is one of the world's largest module manufacturers, reducing counterparty risk for C&I project financing and rooftop portfolios, and easing long-term warranty servicing.
Unlike all three peer comparables (Sunpro Power TOPCon 210R Bifacial, Talesun BIPRO, RedSolar Bifacial), the Hi-MO X10 Explorer is not a bifacial module. This means no additional rear-side yield gain from reflected light (typically 3-8% depending on ground albedo), which may matter for ground-mount projects or rooftop farms over light-colored surfaces.
- Efficiency of 23.5% is 0.7pp above the N-type 600-650W median (22.8%)
- Power density of 235.1 W/m² packs 7.4 W/m² more into the same footprint vs N-type 600-650W median (227.7 W/m²)
- At -0.26%/°C (vs median -0.29%/°C), loses ~1% less power in hot conditions
- 28.5 kg weight - 4.3 kg lighter than N-type 600-650W median (32.8 kg), reducing installation effort
- Ranked #749 out of 14129 panels for efficiency in the database
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 635 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 1144 panels of the same or similar size to this one, within ±10 mm. See them here Found 1150 panels of the same or similar size to this one, within ±25 mm. See them here Found 1261 panels of the same or similar size to this one, within ±50 mm. See them here Found 1942 panels of the same or similar size to this one, within ±100 mm. See them here
About the Hi-MO X10 Explorer (LR7-72HVH 630~650M) series
These answers cover the whole series. Where a figure differs, the specification above is this module's own.