Longi 645W Hi-MO X10 Bifacial HP Back Contact Half Cell Solar Panel
Note: Due to the size and weight of these modules, a forklift on site is required for unloading.
- High Output Bifacial Performance: Generates up to 645W with HP Back Contact for higher rear side gain, ideal for utility, commercial and large-scale projects.
- Built for Longevity: Dual glass construction and advanced TaiRay BC technology mean lower operating temperature, less degradation, and 30-year performance warranty.
- Maximised Efficiency: Delivers module efficiency up to 23.9% in optimal conditions, supporting faster payback and more energy per m².
The Longi Hi-MO X10 645W Bifacial HP Back Contact Half Cell module redefines large-scale solar output. It features dual glass for robust durability in demanding UK and global climates, with HP back contact for optimal light capture from both sides. Its high efficiency and outstanding mechanical loading make it a smart choice for ground-mount, utility-scale and commercial rooftop installations, with market-leading warranties for peace of mind.
Key Features
- TaiRay wafer and HP Back Contact for improved yield, reliability and lower temperature operation.
- Bifacial technology increases output with reflected rear irradiation—higher returns from rooftops, fields, and light-coloured ground surfaces.
- Dual 2.0mm glass and anodised aluminium frame offer superb protection against dust, water, heavy snow and wind (5400Pa/2400Pa).
- IP68 junction box and advanced anti-reflective glass for reduced soiling and higher performance, even in harsh conditions.
- 15-year product and processing warranty, 30-year extra linear power output warranty (88.85% retention at 30 years).
Technical Specifications
| Rated (Peak) Power (Pmax): | 645W |
| Module Efficiency (STC): | 23.9% |
| Maximum Power Voltage (Vmp): | 44.77V |
| Maximum Power Current (Imp): | 14.41A |
| Open Circuit Voltage (Voc): | 54.12V |
| Short Circuit Current (Isc): | 15.06A |
| Cell Type/Count: | HP Back Contact, 144 half cells |
| Dimensions (L x W x H): | 2382 x 1134 x 30 mm |
| Weight: | 33.5 kg |
| Front/Back Glass: | Dual glass, 2.0 mm semi-tempered (front & rear) |
| Frame: | Anodised aluminium alloy |
| Junction Box: | IP68, 3 diodes |
| Connector: | MC4-Evo2 (customisable) |
| Max System Voltage: | 1500V DC |
| Max Fuse Rating: | 30A |
| Temperature Coefficient (Pmax): | -0.26% / °C |
| Operating Temperature: | -40°C to +85°C |
| Mechanical Load (Front/Rear): | 5400 Pa / 2400 Pa |
| Fire Rating: | UL type 29, IEC Class C |
| Protection Class: | Class II |
| Certifications: | IEC 61215, IEC 61730, ISO9001, ISO14001, ISO45001, IEC62941, TÜV Rheinland, TÜV SÜD, CE |
| Warranty: | 15 years product/materials, 30 years linear power (88.85% retained after 30 years) |
| Mounting Hole Gap: | 1093 mm |
| Cables: | 400 mm (+)/200 mm (-), 1400 mm customisable |
| Bifaciality: | Up to 70% |
Shipping & Delivery
- Available for delivery within the UK, Ireland, Africa, the Caribbean and worldwide.
- If the shipping rate does not show at checkout, please contact us for a quote on +44 2080640335 or info@energian.co.uk.
UK Expert Support
- Reach our UK solar experts with any product questions by phone, email, live chat, or in-person at our London office.
- Installation by a licensed electrician or a trusted Energian partner is required for warranty and safety.