LONGi Solar Panels

LONGi Solar 

LONGi Hi-MO Solar Panels — N-Type TOPCon Technology LONGi Green Energy Technology is the world's largest solar panel manufacturer by shipment volume and one of the most respected names in photovoltaic technology. At Portlandia Electric Supply, we're proud to be an authorized dealer for LONGi's complete Hi-MO solar panel lineup, including their latest N-Type TOPCon…

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208 products

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Top SellerLONGi 375W 72-Cell PERC Solar PanelLONGi LONGi 375W 72-Cell PERC Solar Panel $109.13 $0.29/W · 375WOnly 3 leftShips in 1–2 business daysTop SellerLONGi Solar Panels - Longi 355W Solar Panel - LR4-60HPB-355WLONGi LONGi Solar Panels - Longi 355W Solar Panel - LR4-60HPB... $299.35 $0.84/W · 355WAvailable to orderLead time confirmed at checkoutTop SellerLONGi Solar LGi7-72HTD 610MLONGi LONGi Solar LGi7-72HTD 610M $173.33 Available to orderLead time confirmed at checkoutJuncess Energy LR5-54HTB-440MLONGi Juncess Energy LR5-54HTB-440M $93.90 Available to orderLead time confirmed at checkoutJuncess Energy LR5-54HTB-435MLONGi Juncess Energy LR5-54HTB-435M $92.83 Available to orderLead time confirmed at checkoutJuncess Energy LR5-54HTB-430MLONGi Juncess Energy LR5-54HTB-430M $91.76 Available to orderLead time confirmed at checkoutJuncess Energy LR5-72HTH-600MLONGi Juncess Energy LR5-72HTH-600M $128.04 Available to orderLead time confirmed at checkoutJuncess Energy LR5-72HTH-595MLONGi Juncess Energy LR5-72HTH-595M $126.97 Available to orderLead time confirmed at checkoutJuncess Energy LR5-72HTH-590MLONGi Juncess Energy LR5-72HTH-590M $125.91 Available to orderLead time confirmed at checkoutJuncess Energy LR5-72HTH-585MLONGi Juncess Energy LR5-72HTH-585M $124.84 Available to orderLead time confirmed at checkout
  • LONGi 375W Solar Panel 72 Cell Monocrystalline PERC LR6-72PH-375M Wholesale 26 Panels per Pallet — back view

    LONGi 375W 72-Cell PERC Solar Panel

    LONGi

    MPN: A1-LONG-LONG

    $109.13 USD
    $109.13 USD
    $0.29/W
    EOL — While Supplies Last
    Only 3 left
    Expected ship Oct 20 – 21
    In Stock
  • LONGi Solar Panels - Longi 355W Solar Panel - LR4-60HPB-355W — front view LONGi Solar Panels - Longi 355W Solar Panel - LR4-60HPB-355W — side angle

    LONGi Solar Panels - Longi 355W Solar Panel - LR4-60HPB-355W

    LONGi

    MPN: PES-SPS-SPL-0029

    $299.35 USD
    $299.35 USD
    Pallet of 30
    $0.84/W
    EOL — While Supplies Last
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LGi7-72HTD 610M LONGi Solar LGi7-72HTD 610M

    LONGi Solar LGi7-72HTD 610M

    LONGi

    MPN: PES-SPS-SOL-11304

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • Juncess Energy LR5-54HTB-440M Juncess Energy LR5-54HTB-440M

    Juncess Energy LR5-54HTB-440M

    LONGi

    MPN: Juncess_Energy-LR5-54HTB-440M

    $93.90 USD
    $93.90 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • Juncess Energy LR5-54HTB-435M Juncess Energy LR5-54HTB-435M

    Juncess Energy LR5-54HTB-435M

    LONGi

    MPN: Juncess_Energy-LR5-54HTB-435M

    $92.83 USD
    $92.83 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • Juncess Energy LR5-54HTB-430M Juncess Energy LR5-54HTB-430M

    Juncess Energy LR5-54HTB-430M

    LONGi

    MPN: Juncess_Energy-LR5-54HTB-430M

    $91.76 USD
    $91.76 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • Juncess Energy LR5-72HTH-600M Juncess Energy LR5-72HTH-600M

    Juncess Energy LR5-72HTH-600M

    LONGi

    MPN: Juncess_Energy-LR5-72HTH-600M

    $128.04 USD
    $128.04 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • Juncess Energy LR5-72HTH-595M Juncess Energy LR5-72HTH-595M

    Juncess Energy LR5-72HTH-595M

    LONGi

    MPN: Juncess_Energy-LR5-72HTH-595M

    $126.97 USD
    $126.97 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • Juncess Energy LR5-72HTH-590M Juncess Energy LR5-72HTH-590M

    Juncess Energy LR5-72HTH-590M

    LONGi

    MPN: Juncess_Energy-LR5-72HTH-590M

    $125.91 USD
    $125.91 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • Juncess Energy LR5-72HTH-585M Juncess Energy LR5-72HTH-585M

    Juncess Energy LR5-72HTH-585M

    LONGi

    MPN: Juncess_Energy-LR5-72HTH-585M

    $124.84 USD
    $124.84 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • Juncess Energy LR5-72HTH-580M Juncess Energy LR5-72HTH-580M

    Juncess Energy LR5-72HTH-580M

    LONGi

    MPN: Juncess_Energy-LR5-72HTH-580M

    $123.77 USD
    $123.77 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • Juncess Energy LR5-54HTH-450M Juncess Energy LR5-54HTH-450M

    Juncess Energy LR5-54HTH-450M

    LONGi

    MPN: Juncess_Energy-LR5-54HTH-450M

    $96.03 USD
    $96.03 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • Juncess Energy LR5-54HTH-445M Juncess Energy LR5-54HTH-445M

    Juncess Energy LR5-54HTH-445M

    LONGi

    MPN: Juncess_Energy-LR5-54HTH-445M

    $94.96 USD
    $94.96 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • Juncess Energy LR5-54HTH-440M Juncess Energy LR5-54HTH-440M

    Juncess Energy LR5-54HTH-440M

    LONGi

    MPN: Juncess_Energy-LR5-54HTH-440M

    $93.90 USD
    $93.90 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi 400W Hi-MO5 LNG-400-LR5-54HABB 108 Half-Cut M10 Cells Bifacial Solar Panel — back view

    LONGi 400W Hi-MO5 LNG-400-LR5-54HABB 108 Half-Cut M10 Cells Bifacial Solar Panel

    LONGi

    MPN: USS-LONG-LONG

    $156.99 USD
    $156.99 USD
    $0.39/W
    In stock
    Expected ship Oct 20 – 21
    In Stock
  • LONGi 355W LNG-355-LR4-HPB 120 Cell Mono Black on Black Solar Panel — back view

    LONGi 355W LNG-355-LR4-HPB 120 Cell Mono Black on Black Solar Panel

    LONGi

    MPN: USS-LONG-LONG

    $266.31 USD
    $266.31 USD
    $0.75/W
    In stock
    Expected ship Oct 20 – 21
    In Stock
  • Longi HiMO 360W LR4-60HPB-360M BoB Solar Module — side angle

    Longi HiMO 360W LR4-60HPB-360M BoB Solar Module

    LONGi

    MPN: USS-LONG-HPB-360M

    $109.99 USD
    $109.99 USD
    $0.31/W
    EOL — While Supplies Last
    In stock
    Expected ship Oct 20 – 21
    In Stock
  • Longi 370W Bifacial Mono PERC Solar Panel – LR6-72HBD-370M — back view

    Longi 370W Bifacial Mono PERC Solar Panel – LR6-72HBD-370M

    LONGi

    MPN: USS-LONG-PERC

    $124.99 USD
    $124.99 USD
    $0.34/W
    EOL — While Supplies Last
    In stock
    Expected ship Oct 20 – 21
    In Stock
  • LONGi 435W (Pallet of 30) Bifacial Dual‑Glass Half‑Cut Solar Panel LR4‑72HBD‑435M — back view

    LONGi 435W (Pallet of 30) Bifacial Dual‑Glass Half‑Cut Solar Panel LR4‑72HBD‑435M

    LONGi

    MPN: USS-LONG-LONG

    $2,996.99 USD
    $2,996.99 USD
    Pallet pricing
    In stock
    Expected ship Oct 20 – 21
    In Stock
  • LONGi Solar LR8-66HVD-665M

    LONGi Solar LR8-66HVD-665M

    LONGi

    MPN: PES-SPS-SOL-11474

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HVD-660M

    LONGi Solar LR8-66HVD-660M

    LONGi

    MPN: PES-SPS-SOL-11473

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HVD-655M

    LONGi Solar LR8-66HVD-655M

    LONGi

    MPN: PES-SPS-SOL-11472

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HVD-650M

    LONGi Solar LR8-66HVD-650M

    LONGi

    MPN: PES-SPS-SOL-11471

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HVD-645M

    LONGi Solar LR8-66HVD-645M

    LONGi

    MPN: PES-SPS-SOL-11470

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HVD-640M

    LONGi Solar LR8-66HVD-640M

    LONGi

    MPN: PES-SPS-SOL-11469

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HYD-630M

    LONGi Solar LR8-66HYD-630M

    LONGi

    MPN: PES-SPS-SOL-11475

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HYD-670M

    LONGi Solar LR8-66HYD-670M

    LONGi

    MPN: PES-SPS-SOL-11483

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HYD-665M

    LONGi Solar LR8-66HYD-665M

    LONGi

    MPN: PES-SPS-SOL-11482

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HYD-660M

    LONGi Solar LR8-66HYD-660M

    LONGi

    MPN: PES-SPS-SOL-11481

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HYD-655M

    LONGi Solar LR8-66HYD-655M

    LONGi

    MPN: PES-SPS-SOL-11480

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HYD-650M

    LONGi Solar LR8-66HYD-650M

    LONGi

    MPN: PES-SPS-SOL-11479

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HYD-645M

    LONGi Solar LR8-66HYD-645M

    LONGi

    MPN: PES-SPS-SOL-11478

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HYD-640M

    LONGi Solar LR8-66HYD-640M

    LONGi

    MPN: PES-SPS-SOL-11477

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HYD-635M

    LONGi Solar LR8-66HYD-635M

    LONGi

    MPN: PES-SPS-SOL-11476

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR7-72HYD-660M — LONGi module (ENF-verified)

    LONGi Solar LR7-72HYD-660M

    LONGi

    MPN: PES-SPS-SOL-11461

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR7-72HYD-655M — LONGi module (ENF-verified)

    LONGi Solar LR7-72HYD-655M

    LONGi

    MPN: PES-SPS-SOL-11460

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR7-72HYD-650M — LONGi module (ENF-verified)

    LONGi Solar LR7-72HYD-650M

    LONGi

    MPN: PES-SPS-SOL-11459

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR7-72HYD-645M — LONGi module (ENF-verified)

    LONGi Solar LR7-72HYD-645M

    LONGi

    MPN: PES-SPS-SOL-11458

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HGD-625M — LONGi module (ENF-verified)

    LONGi Solar LR8-66HGD-625M

    LONGi

    MPN: PES-SPS-SOL-11468

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HGD-620M — LONGi module (ENF-verified)

    LONGi Solar LR8-66HGD-620M

    LONGi

    MPN: PES-SPS-SOL-11467

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HGD-615M — LONGi module (ENF-verified)

    LONGi Solar LR8-66HGD-615M

    LONGi

    MPN: PES-SPS-SOL-11466

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HGD-610M — LONGi module (ENF-verified)

    LONGi Solar LR8-66HGD-610M

    LONGi

    MPN: PES-SPS-SOL-11465

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HGD-605M — LONGi module (ENF-verified)

    LONGi Solar LR8-66HGD-605M

    LONGi

    MPN: PES-SPS-SOL-11464

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HGD-600M — PES Supply

    LONGi Solar LR8-66HGD-600M

    LONGi

    MPN: PES-SPS-SOL-11463

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR8-66HGD-595M — LONGi module (ENF-verified)

    LONGi Solar LR8-66HGD-595M

    LONGi

    MPN: PES-SPS-SOL-11462

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR7-60HVHL-560M — LONGi module (ENF-verified)

    LONGi Solar LR7-60HVHL-560M

    LONGi

    MPN: PES-SPS-SOL-11409

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR7-60HVHL-555M — LONGi module (ENF-verified)

    LONGi Solar LR7-60HVHL-555M

    LONGi

    MPN: PES-SPS-SOL-11408

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock
  • LONGi Solar LR7-72HVDF-665M — LONGi module (ENF-verified)

    LONGi Solar LR7-72HVDF-665M

    LONGi

    MPN: PES-SPS-SOL-11439

    $173.33 USD
    $173.33 USD
    Pallet of 10
    Available to order
    Expected ship Oct 22 – 26
    In Stock

About LONGi Solar Panels

LONGi Hi-MO Solar Panels — N-Type TOPCon Technology

LONGi Green Energy Technology is the world's largest solar panel manufacturer by shipment volume and one of the most respected names in photovoltaic technology. At Portlandia Electric Supply, we're proud to be an authorized dealer for LONGi's complete Hi-MO solar panel lineup, including their latest N-Type TOPCon series that delivers industry-leading efficiency and performance.

About LONGi Solar

Founded in 2000 and headquartered in Xi'an, China, LONGi has grown from a small silicon materials company to the world's largest mono-crystalline silicon product manufacturer. The company holds numerous world records for solar cell efficiency and has invested billions in R&D to push photovoltaic technology forward. LONGi's commitment to monocrystalline technology has driven the industry-wide shift from polycrystalline to mono, establishing the standards that modern solar panels are measured against.

LONGi operates manufacturing facilities across China, Malaysia, and Vietnam, with a combined annual production capacity exceeding 150 GW. The company's financial strength and consistent growth have earned it a Tier 1 ranking from BloombergNEF for over a decade, making LONGi panels a bankable choice for utility-scale projects, commercial installations, and residential rooftops alike.

Hi-MO Series: N-Type TOPCon Technology

The LONGi Hi-MO series represents the company's premium product line, featuring N-Type TOPCon (Tunnel Oxide Passivated Contact) cell technology. N-Type silicon is inherently more efficient and less prone to light-induced degradation than traditional P-Type silicon, resulting in panels that maintain higher output over their lifetime.

LONGi's Hi-MO 6 and Hi-MO X6 series panels achieve efficiency ratings up to 22.5%, placing them among the most efficient commercially available panels. The Hi-MO 6 Explorer features a sleek all-black design with no visible grid lines, making it ideal for residential installations where aesthetics matter. The Hi-MO X6 Scientist offers slightly higher efficiency with a standard silver frame design, optimized for commercial and utility-scale projects where maximum output per square foot is the priority.

Industry-Leading Technology & Reliability

LONGi panels undergo rigorous testing and certification, including:

  • IEC 61215 and IEC 61730 certification for safety and performance
  • PID (Potential Induced Degradation) resistance testing
  • Salt mist and ammonia corrosion testing for coastal and agricultural environments
  • Snow load testing up to 5,400 Pa and wind load testing to 2,400 Pa
  • Temperature coefficient optimization for hot climate performance

LONGi's N-Type TOPCon cells demonstrate lower temperature coefficients than conventional P-Type cells, meaning they lose less power as cell temperature rises. In hot climates, this can translate to 2-5% more annual energy production compared to panels with higher temperature coefficients — a significant advantage over a 25-year system lifetime.

25-Year Warranty & Performance Guarantee

LONGi backs their Hi-MO series with a comprehensive 25-year performance warranty guaranteeing at least 84.8% of original rated power output after 25 years. The product warranty covers 15 years for material and workmanship defects, with optional extended warranty programs available. As an authorized LONGi dealer, Portlandia Electric Supply handles warranty registration and claims directly, ensuring seamless support for our customers.

Why Buy LONGi Panels from Portlandia Electric Supply?

As an authorized LONGi dealer, we receive direct factory support, training, and technical resources that unauthorized resellers cannot access. We maintain LONGi inventory in our Portland warehouse for fast shipping, and our technical team has completed LONGi's product certification training. When you buy LONGi panels from PES, you get genuine products with valid warranties, competitive pricing, and expert support.

Starting at $0.28/watt for select Hi-MO models, our LONGi pricing is among the most competitive in the industry. Browse our LONGi inventory or contact our sales team for volume pricing and project quotes.

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