Description
The SLD Tech ST-20R-12 is a 20-watt, 32-cell monocrystalline solar panel delivering 20% module efficiency for dependable 12V DC power in off-grid and small-scale renewable energy applications.
Key Features:
- High-Efficiency Monocrystalline Cells: Advanced cell technology and manufacturing capabilities achieve a 20% module efficiency rating with a 5% 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 2-year product workmanship warranty for dependable long-term investment protection.
The ST-20R-12 is designed for nominal 12V DC output, making it a versatile solution for battery charging, small off-grid systems, and remote power applications. Its outstanding low-light performance ensures reliable energy generation even under reduced irradiance conditions.
Built with 32 monocrystalline silicon cells in a 4x8 configuration, this panel delivers proven efficiency and structural durability across a wide range of outdoor environments. The lightweight 4.00 lb design and compact form factor make mounting and installation straightforward for both fixed and portable applications.
The ST-20R-12 maintains at least 80.68% of rated power output at year 25 under its solar linear warranty, providing predictable, long-term energy performance. With an operating temperature range of -40°C to 85°C and a maximum system voltage of 1000V DC, it is built to perform across virtually all climates and system configurations.
Technical Specifications
| Specification | Details |
|---|---|
| Product Code | 020P3201A |
| Weight | 4.00 lbs (1.81 kg) |
| Maximum Power (Pmax) | 20W |
| Module Efficiency | 20.00% |
| Voltage at Pmax (Vmp) | 18.53V |
| Current at Pmax (Imp) | 1.08A |
| Open-Circuit Voltage (Voc) | 21.37V |
| Short-Circuit Current (Isc) | 1.14A |
| Power Tolerance | ±5% (0~+5W) |
| 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 85°C |
| Maximum System Voltage | 1000V DC |
| Cell Type | Monocrystalline Silicon |
| Number of Cells | 32 (4 x 8) |
| Module Dimensions | 15.35 x 14.17 x 1.18 in (390 x 360 x 30 mm) |
| Wind Load | 2,400 Pa |
| Snow Load | 5,400 Pa |
| Product Warranty | 2 Years |
| Power Warranty | 25 Years |
Specs & Info