LONGi Solar Panels

LONGi is the world's leading monocrystalline silicon solar technology company, holding the world record for module efficiency at 25.4% as listed on the NREL Champion Photovoltaic Module Efficiency Chart. Solar Merchant stocks LONGi Hi-Mo X series panels at trade prices.

LONGi Products Available from Solar Merchant

LONGi Hi-Mo X10 HVB 480W All Black

The Hi-Mo X10 HVB (LR7-54HVB-480M) is built on LONGi's next-generation HPBC 2.0 (Hybrid Passivated Back Contact, Generation 2) cell technology. With all electrical contacts on the rear of the cell and zero front-side busbars, the panel delivers up to 23.3% module efficiency in an all-black 54-cell format, making it ideal for premium residential rooftops. Rated to 5400Pa front / 2400Pa rear static load. 15-year product warranty, 30-year linear output warranty. Winner of the Smarter E Award 2025 at Intersolar.

LONGi Hi-Mo X6 HTH 540W Black White

The Hi-Mo X6 HTH (LR5-66HTH-540M) is a high-output 540W monocrystalline panel using LONGi's HPBC cell technology, delivering 22.7% module efficiency in a 66 half-cut cell format. The large-format 2094mm panel reduces the number of modules needed per kWp, lowering BOS and installation costs for residential and C&I rooftop projects. 15-year product warranty, 25-year linear output warranty.

Why Installers Choose LONGi

LONGi is a Tier 1 manufacturer and global benchmark for bankability, innovation, and long-term quality assurance. Widely regarded as one of the most reliable panel brands available to UK installers, LONGi's Hi-Mo X series represents the company's flagship distributed market product for the UK residential and C&I market.

Trade Pricing & Ordering

LONGi panels are available at trade prices. Contact Solar Merchant for account pricing, pallet orders, or project quotations.