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ST-M-300W Monocrystalline Solar Panel

Model: ST-M-300W Monocrystalline Solar Panel

  • A 22% conversion rate to sunlight
  • Built to last with an IP68 waterproof rating
  • Fast and Easy Installation
  • Excellent PID resistance for sustained efficiency in extreme conditions
  • Withstands 5400Pa snow load / 2,400Pa wind load
  • 12-year product warranty + 30-year linear power warranty
ST-M-300W Monocrystalline Solar Panel ip68 22percent efficiency 30year warranty highly protective

Maximizing power utilization

Monocrystalline solar modules can achieve over 22% energy conversion efficiency, while MBB half-cut cell technology and a low-resistance circuit design ensure up to 2% higher power output compared to conventional panels. The optimized Vmp range enables precise MPPT tracking, maximizing energy harvest and delivering the highest return on your solar investment.

22 percent high solar energy conversion generate more energy
ST-M-300W monocrystalline solar panel on a mountain, withstanding rain and snow, demonstrating all-weather durability and high-efficiency energy generation

The Perfect All-Weather Panel

Built with 3.2mm low-iron tempered glass, anodized aluminum frame, IP68 junction box, and PID protection, these solar modules withstand 5400Pa snow, 2400Pa wind, and -40°C to +85°C for reliable all-weather energy generation.

Power Performance Guarantee

Comes with a 12-year product warranty and an extended 30-year linear power warranty, ensuring that the power output remains no less than 80% of its initial capacity after 30 years. This guarantees long-term reliability and sustainable value for your investment.

Power performance guarantee 30 years linear power warranty
ST-M-300W solar panel anodized aluminum alloy frame and 3.2mm low-iron tempered glass for durability

Robust and Reliable

Crafted with a high-strength anodized aluminum alloy frame and 3.2mm low-iron tempered glass, the module delivers exceptional durability even under extreme conditions. Certified by IEC, CE, and ISO standards, it ensures reliable protection and long-lasting performance in demanding environments.

Residential and C&I Application Scenarios

The ST-M-300W monocrystalline solar panel combines high efficiency, lightweight design, a robust frame, tempered glass, and high system voltage tolerance. It can be flexibly connected in series or parallel to suit various system requirements, providing reliable green energy solutions for both residential and commercial & industrial applications.

ST-M-300W monocrystalline solar panel mounted on a residential rooftop, providing efficient and reliable solar energy for homes

What’s Included

ST-M-300W Solar Panel Package Contents

1. 1×300W Solar Panel
2. User Manual and Warranty Card (12 Years Product Warranty, 30 Years Linear Power Warranty)

SPECIFICATION

Mechanical Data
ModelS-TM-300W
Cell Type10BB MONO 182*60.67mm
No. of Cells120(6×20)
Dimension1,300×1,134×35mm
Weight15kg
Glass3.2mm, Low Iron Tempered Glass
FrameAnodized Aluminium Alloy
Junction BoxIP68, 3 diodes
Output Cables2.5mm², Length 900mm or customized
Connector typeMC4 compatible
Temperature Characteristics
NOCT Temperature44ºC±2ºC
Temperature Coefficient (Pmax)-0.36%/ºC
Temperature Coefficient (Voc)-0.28%/ºC
Temperature Coefficient (Isc)0.05%/ºC
Maximum Ratings
Maximum system voltage (IEC)1,000VDC
Snow / Wind5,400Pa/2,400Pa
Operating Temperature-40ºC ~+85ºC
Maximum series fuse rating15A
Packaging Configurations
Per Pallet31 pcs
Per 40′ HQ Container1,504 pcs
Manual

ST-M-300W Solar Panel: FAQs

The panel is certified to IEC 61215, IEC 61730, CE, and ISO standards, covering safety, quality management, environmental management, and occupational health & safety.

Each panel operates at a Vmp of ~35V and Imp of ~8.5A. For residential rooftops, typically 8–12 panels are connected in series to match common inverter MPPT voltage ranges (250–600V). For C&I projects, longer strings can be used, but always ensure total string voltage does not exceed 1000VDC.

Yes. The panel’s standardized MC4-compatible connectors and 1000VDC system rating make it compatible with most hybrid inverters and DC-coupled battery storage systems. It is widely used in both grid-tied + storage and off-grid microgrid setups.

Proper series-parallel design ensures the inverter operates in its optimal MPPT window, reducing mismatch losses and lowering LCOE (Levelized Cost of Electricity). For example, half-cut cell technology provides ~2% more energy yield by reducing resistive losses and hot spot risk, directly improving long-term ROI.

The panel is certified to IEC 61215, IEC 61730, CE, and ISO standards, covering safety, quality management, environmental management, and occupational health & safety.