LONGi Solar
The world's #1 monocrystalline solar manufacturer.
Founded in 2000 and headquartered in Xi'an, LONGi is the world's largest producer of monocrystalline silicon wafers and one of the most-shipped solar module brands on the planet. LONGi has been Bloomberg Tier-1 every single quarter since the ranking began and holds multiple world records for cell efficiency. Their Hi-MO X6 and Hi-MO 6 Explorer modules — built on LONGi's proprietary HPBC (Hybrid Passivated Back Contact) cell technology — combine premium all-black aesthetics with class-leading low-light performance, making them an outstanding match for Victorian conditions.
- NETCC Approved Seller
- 10,000+ Installs across VIC
- 4.7★ · 300+ Google Reviews
- 10-Year Workmanship Warranty
- 11+ Years in the Industry
- Australian Owned
The case for LONGi.
We don't install everything — just the products we believe in. Here's why LONGi Solar earned a spot in our line-up.
- Bloomberg Tier-1 manufacturer every quarter since the ranking began
- World's largest mono-silicon wafer producer — full vertical integration
- Proprietary HPBC back-contact cell technology — no front busbars, higher output
- Exceptional low-light and partial-shade performance for Aussie roofs
- Strong Australian office, local stock and fast warranty turnaround
- Multiple world records for cell efficiency (most recently 27.3% HJT)
The LONGi Solar models we install
Each model below is a current, in-stock product we install across Victoria with full warranty support.
LONGi Hi-MO 6 Explorer 440W N-type All-Black
Premium HPBC all-black module — Sunline's most-installed LONGi panel.
- 440W output · HPBC N-type cells
- 22.6% module efficiency
- All-black frame, no busbars on front
- Excellent low-light & shading performance
- Power output
- 440W
- Cell technology
- N-type HPBC mono
- Module efficiency
- 22.6%
- Cells
- 54 (half-cut)
- Dimensions
- 1722 × 1134 × 30 mm
- Weight
- 21.5 kg
- Frame
- Anodised black aluminium
- Temperature coefficient
- −0.29%/°C
- Max system voltage
- 1500V DC
- Hail rating
- 25 mm @ 23 m/s
- Product warranty
- 25 years
- Performance warranty
- 25 years (≥88.85% Yr25)
LONGi Hi-MO X6 475W N-Type
Higher-power N-type module for compact roofs that need more kW.
- 475W N-type output
- ~22.3% efficiency
- 30-year linear performance warranty
- Great fit for tight roof spaces
- Power output
- 475W
- Cell technology
- N-type TOPCon
- Module efficiency
- ~22.3%
- Cells
- 108 (half-cut)
- Max system voltage
- 1500V DC
- Annual degradation
- ≤0.4%/yr (Yr1 ≤1%)
- Product warranty
- 25 years
- Performance warranty
- 30 years
Other panels brands we install
Aiko Solar
All-Back-Contact (ABC) — the most efficient mass-produced module on Earth.
View brandJinko Solar
World's #1 module shipper — and the most-installed brand on Aussie roofs.
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Pioneers of large-format Vertex panels — 26+ years in solar.
View brandJA Solar
One of the world's most-shipped Tier-1 module brands.
View brandReady to install LONGi Solar?
Get a free, tailored quote for a LONGi Solar system properly designed for your home.