LONGi Solar 475W Mono All Black SDM Solar Panels
- Generate 475W per panel at standard test conditions, with 23.3% module efficiency for projects where available roof space matters.
- All-black appearance with HPBC 2.0 back-contact technology, no front gridlines and a black anodised aluminium frame.
- 30-year materials and processing warranty and 30-year linear power-output warranty, subject to LONGi’s terms.
LONGi Solar 475W all-black single-glass solar panel
The LONGi Solar 475W LR7-54HVB-475M is part of the EcoLife X10 Single Glass Black range. It combines HPBC 2.0 back-contact technology with a low-glare, all-black front appearance for residential and suitable commercial rooftop installations. The module measures 1,800 × 1,134 × 30mm and weighs 21.6kg.
Key features
- Space-efficient generation: 475W rated output and 23.3% module efficiency help make effective use of the available installation area.
- HPBC 2.0 technology: back-contact cells provide a front surface without visible gridlines, supporting the panel’s uniform black appearance.
- Shading-related safety features: LONGi lists anti-shading functionality and prevention of localised overheating. Shading must still be assessed during system design.
- Single-glass construction: 3.2mm coated tempered glass with a black anodised aluminium alloy frame.
- Long-term warranty cover: 30-year materials and processing and power-output warranties, with 88.85% guaranteed output at year 30, subject to manufacturer terms.
Where to use
Consider the LONGi Solar 475W all-black panel for residential roofs, commercial offices, warehouse administration buildings and other suitable rooftops where module appearance and installation space matter. It can also form part of a professionally designed off-grid or hybrid system with a compatible inverter or charge controller.
Use mounting hardware approved for the exact module dimensions, frame profile and fixing positions. Check structural loading, shading, cold-weather string voltage and inverter input-current limits before installation. This is a single-glass panel; do not assume the rear-side generation characteristics of a bifacial module.
Energian can help with module quantities, inverter selection, mounting compatibility and complete system planning. The panel is not a stand-alone power supply and requires professional electrical integration. Installation can be arranged through trusted partners.
Technical specifications
Electrical figures apply to LR7-54HVB-475M at standard test conditions. Specifications follow the supplied LONGi EcoLife X10 Single Glass Black 475–495M datasheet, revision BGV03 20250625. NOCT/NMOT and BNPI characteristics and pallet dimensions are omitted.
| Specification | Value |
|---|---|
| Product identification | |
| Manufacturer | LONGi Solar |
| Product family | EcoLife X10 Single Glass Black |
| Datasheet series | LR7-54HVB 475–495M |
| Exact module model | LR7-54HVB-475M |
| Datasheet power range | 475–495W |
| Cell technology | HPBC 2.0 back-contact technology |
| Module construction | Single glass |
| Appearance | All black; no front gridlines; low-glare appearance as described by LONGi |
| Datasheet revision | BGV03 20250625 |
| Electrical characteristics at STC | |
| Maximum power output, Pmax | 475W |
| Module efficiency | 23.3% |
| Open-circuit voltage, Voc | 40.18V |
| Short-circuit current, Isc | 15.03A |
| Voltage at maximum power, Vmp | 33.16V |
| Current at maximum power, Imp | 14.33A |
| Power-output tolerance | 0 to +3% |
| Maximum-power test uncertainty | ±3%; distinct from the stated power-output tolerance |
| Standard test conditions | AM1.5; irradiance 1,000W/m²; cell temperature 25°C |
| Mechanical construction | |
| Cell arrangement | 108, arranged 6 × 18 |
| Junction box | IP68 |
| Front glass | 3.2mm coated tempered glass |
| Frame | Black anodised aluminium alloy |
| Dimensions, L × W × H | 1,800 × 1,134 × 30mm |
| Length tolerance | ±2mm |
| Width tolerance | ±2mm |
| Module weight | 21.6kg |
| Output-cable cross-section | 4mm² |
| Output-cable length options listed | +400mm / −200mm, or ±1,200mm; length can be customised. Confirm the supplied configuration before specifying extension leads. |
| Longitudinal mounting-hole spacings shown in drawing | 1,150mm and 1,400mm |
| Transverse mounting-hole spacing shown in drawing | 1,093mm |
| Mounting-slot dimensions shown in drawing | 9 × 14mm |
| Frame cross-sections shown in drawing | A–A: 30 × 30mm; B–B: 15 × 30mm. Check the profile when selecting mounting hardware. |
| Operating limits and temperature characteristics | |
| Operating temperature | −40°C to +85°C |
| Maximum system voltage | 1,500V DC (IEC) |
| Maximum series fuse rating | 25A |
| Protection class | Class II |
| Fire rating | IEC Class C |
| Temperature coefficient of short-circuit current, Isc | +0.050%/°C |
| Temperature coefficient of open-circuit voltage, Voc | −0.200%/°C |
| Temperature coefficient of maximum power, Pmax | −0.260%/°C |
| Mechanical loading and testing | |
| Front-side maximum static loading | 5,400Pa |
| Rear-side maximum static loading | 2,400Pa |
| Mechanical-load qualification | Confirm the approved mounting arrangement and applicable design-load limits in LONGi’s installation instructions. Published module load ratings do not replace a site-specific structural assessment. |
| Hailstone test | 25mm hailstones at 23m/s |
| Standards and systems listed on the datasheet | |
| Module qualification and safety standards | IEC 61215; IEC 61730 |
| Quality system for PV module manufacturing | IEC 62941 |
| Quality management system | ISO 9001 |
| Environmental management system | ISO 14001 |
| Occupational health and safety management system | ISO 45001 |
| Conformity marking shown | CE |
| Warranty and degradation | |
| Materials and processing warranty | 30 years, subject to manufacturer terms |
| Linear power-output warranty | 30 years, subject to manufacturer terms |
| First-year power degradation | <1%, as stated in the datasheet |
| Annual power degradation, years 2–30 | 0.35% |
| Guaranteed output at year 30 | 88.85% of original rated output |
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UK expert support
Energian’s UK team can help with panel selection, mounting compatibility, inverter string design and complete solar PV system planning. Contact us by phone, email or live chat with questions or support requests, or arrange an in-person consultation at our office.