Description
The SLD Tech ST-90Q-12 is a 90-watt, 33-cell monocrystalline solar panel delivering 21.4% module efficiency for reliable 12V DC power in off-grid and small-scale renewable energy applications.
Key Features:
- 21.4% High-Efficiency Monocrystalline Cells: Advanced cell technology and manufacturing capabilities achieve a 21.4% module efficiency rating with a 3% positive power tolerance.
- High PID Resistance: Qualified materials and advanced cell engineering deliver strong resistance to Potential Induced Degradation for sustained long-term output stability.
- 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.
- High-Transparency Tempered Glass: Low-iron tempered glass maximizes light transmission while providing outstanding protection against hail, wind pressure, and heavy snow.
- 25-Year Linear Power Warranty: Backed by a 25-year power output warranty and a 5-year product workmanship warranty for dependable long-term investment protection.
The ST-90Q-12 is designed for nominal 12V DC output, making it a high-performance solution for battery charging, mid-scale off-grid systems, and remote power applications. Its outstanding low-light performance ensures reliable energy generation even under suboptimal irradiance conditions.
Built with 33 monocrystalline silicon cells in a 3x11 configuration, this panel combines exceptional efficiency with structural durability across demanding outdoor environments. The 12.41 lb design and slim 1.18-inch profile make mounting and installation practical for both fixed and portable applications.
With an operating temperature range of -40°C to 65°C and a maximum system voltage of 1000V DC, the ST-90Q-12 is engineered to deliver consistent performance across a wide range of climates and system configurations. Its quality aesthetic appearance and anodized frame finish make it a professional-grade addition to any renewable energy installation.
Technical Specifications
| Specification | Details |
|---|---|
| Weight | 12.41 lbs (5.63 kg) |
| Maximum Power (Pmax) | 90W |
| Module Efficiency | 21.4% |
| Voltage at Pmax (Vmp) | 19.01V |
| Current at Pmax (Imp) | 4.74A |
| Open-Circuit Voltage (Voc) | 22.31V |
| Short-Circuit Current (Isc) | 5.05A |
| Power Tolerance | ±3% (0~±3%) |
| 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 |
| Operating Temperature | -40°C to 65°C |
| Maximum System Voltage | 1000V DC |
| Cell Type | Monocrystalline Silicon |
| Number of Cells | 33 (3 x 11) |
| Module Dimensions | 32.87 x 22.83 x 1.18 in (835 x 580 x 30 mm) |
| Wind Load | 2,400 Pa |
| Snow Load | 5,400 Pa |
| Product Warranty | 5 Years |
| Power Warranty | 25 Years |

