Longi Solar 340W monocrystalline panel (model LR6-72HV-340M) is a classic mono panel that’s been around for a bit and still holds its own in efficiency and durability. This one isn’t bifacial—it’s a standard monocrystalline design that focuses on high conversion rates from direct sunlight, making it great for places with consistent sun like Kenya, where you want to maximize power without extra bells and whistles. At 340W, it’s perfect for reducing the number of panels in your array, cutting installation costs, and it’s built with a sturdy aluminum frame and tempered glass to stand up to wind, snow, and hail. Pair it with an MPPT controller or inverter for optimal performance in off-grid or grid-tied systems, and you’ll be looking at lower electricity bills and a greener footprint for years. Longi’s quality means low degradation, and with its 10-year product warranty and 25-year power guarantee, it’s a safe bet for long-term use.
Longi Solar 340W monocrystalline panel Key Features
- Monocrystalline Technology: High-efficiency mono cells for better energy conversion in direct sunlight, with positive power tolerance (0~+5W) to ensure you get at least the rated output.
- Durable Construction: IP67 junction box with three diodes for shading protection, and a robust 40mm frame that handles extreme temps from -40°C to +85°C—ideal for harsh weather.
- High Mechanical Load Resistance: Front load up to 5400Pa for snow and wind, rear up to 2400Pa, and hail-resistant to 25mm at 23m/s, making it tough for outdoor installs.
- PID Resistance: Optimized cell process and material selection to minimize potential induced degradation, keeping performance steady over time.
- Easy Connectivity: MC4 compatible connectors and 1200mm cables for quick setup, compatible with most inverters and mounting systems.
- Solid Warranties: 10-year materials and processing warranty, plus a 25-year extra linear power output warranty for long-term reliability.
Longi Solar 340W monocrystalline panel Technical Data Table
| Specification | Value/Details |
|---|---|
| Model | LR6-72HV-340M |
| Cell Type | Monocrystalline |
| Number of Cells | 72 (6×12) |
| Maximum Power (Pmax) | 340 W |
| Open Circuit Voltage (Voc) | 46.50 V |
| Short Circuit Current (Isc) | 9.49 A |
| Voltage at Maximum Power (Vmp) | 37.90 V |
| Current at Maximum Power (Imp) | 8.97 A |
| Module Efficiency | 17.50% |
| Power Tolerance | 0 ~ +5 W |
| Temperature Coefficient (Pmax) | -0.41 %/°C (estimated from series) |
| Temperature Coefficient (Voc) | -0.33 %/°C (estimated from series) |
| Temperature Coefficient (Isc) | +0.059 %/°C (estimated from series) |
| Nominal Operating Cell Temp (NOCT) | 45 ± 2°C |
| Operating Temperature | -40°C to +85°C |
| Maximum System Voltage | 1000 V DC (IEC) |
| Maximum Series Fuse Rating | 15 A |
| Front Static Load | 5400 Pa |
| Rear Static Load | 2400 Pa |
| Hail Resistance | 25 mm at 23 m/s |
| Dimensions (L x W x H) | 1956 mm x 991 mm x 40 mm (77.01 x 39.02 x 1.57 inches) |
| Weight | 22.2 kg (48.94 lbs) |
| Frame | Anodized Aluminum Alloy |
| Glass | Tempered Glass |
| Junction Box | IP67 Rated, 3 Bypass Diodes |
| Cable Length | 1200 mm |
| Connector | MC4 Compatible |
| Product Warranty | 10 Years |
| Power Warranty | 25 Years |
| Certifications | TUV-SUD, CSA, CE |
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