Description
The SLD Tech (Solarland) ST-125Q-24Y is a 125-watt, 64-cell monocrystalline solar panel delivering 22% module efficiency — the highest in the SLD Tech lineup — for reliable 24V DC power in medium to high-power off-grid applications.
Key Features:
- Industry-Leading 22% Monocrystalline Efficiency: Advanced cell technology and manufacturing capabilities achieve the highest module efficiency in the SLD Tech lineup, with a positive-only power tolerance of 0~+5W guaranteeing a minimum 125W output at every panel.
- High PID Resistance: Qualified materials and advanced cell engineering deliver strong resistance to Potential Induced Degradation for sustained long-term output stability in high-voltage systems rated to 1000V DC.
- Heavy-Duty Weather-Resistant Construction: Anodized aluminum frame withstands 5,400 Pa positive load and 2,400 Pa negative load, with salt mist resistance per IEC 61701 for marine, coastal, and high-altitude installations.
- High-Transparency Tempered Glass: Low-iron tempered glass maximizes light transmission while providing outstanding protection against hail, wind pressure, and heavy snow.
- Extended 25-Year Power Warranty: Backed by a 25-year linear power output warranty and a 10-year product workmanship warranty, with guaranteed output of 97% at year 5, 90% at year 10, and 80.68% at year 25.
The ST-125Q-24Y is designed for nominal 24V DC output with an optimized Vmp of 36.88V, making it ideal for efficient charging of 24V battery banks with standard PWM or MPPT charge controllers.
Built with 64 monocrystalline silicon cells in a 4x16 configuration, this panel is well-suited for commercial trucks and heavy equipment, marine house bank charging, industrial control systems, telecommunications backup, remote monitoring stations, and solar-powered water pumping.
Technical Specifications
| Specification | Details |
|---|---|
| Weight | 16.04 lbs (7.27 kg) |
| Maximum Power (Pmax) | 125W |
| Module Efficiency | 22% |
| Voltage at Pmax (Vmp) | 36.88V |
| Current at Pmax (Imp) | 3.39A |
| Open-Circuit Voltage (Voc) | 43.27V |
| Short-Circuit Current (Isc) | 3.62A |
| Power Tolerance | 0~+5W (Positive Only) |
| STC Test Conditions | 1000W/m², AM1.5 Spectrum, 25°C |
| Temperature Coefficient of Voc | -(80±10) mV/°C |
| Temperature Coefficient of Isc | (0.065±0.015) %/°C |
| Temperature Coefficient of Power | -(0.5±0.05) %/°C |
| NOCT | 47±2°C |
| NOCT Test Conditions | Air 20°C, Sun 0.8kW/m², Wind 1m/s |
| Operating Temperature | -40°C to 85°C |
| Maximum System Voltage | 1000V DC |
| Cell Type | Monocrystalline Silicon |
| Cell Configuration | 64 Cells (4 x 16) |
| Frame Material | Heavy-Duty Anodized Aluminum |
| Glass Type | High-Transparency Low-Iron Tempered Glass |
| Junction Box | Weather-Sealed with Bypass Diodes |
| Module Dimensions | 35.83 x 27.76 x 1.38 in (910 x 705 x 35 mm) |
| Wind Load | 2,400 Pa |
| Snow Load | 5,400 Pa |
| Product Warranty | 10 Years |
| Power Warranty | 25 Years (Linear) |
Specs & Info