Description
The SLD Tech ST-200Q-12Y is a 200-watt, 12-volt monocrystalline solar panel designed to provide constant pressure on power delivery for high-power off-grid applications where reliable 12V performance, exceptionally fast battery charging, and professional-grade construction are essential. Featuring 64 high-efficiency monocrystalline silicon solar cells arranged in a 4×16 configuration, the ST-200Q-12Y achieves a module efficiency of 22.0% — industry-leading efficiency ensuring maximum power generation from every square inch. With an exceptional positive power tolerance of 0 to +5W, every panel is guaranteed to produce at least 200W and may deliver up to 205W under standard test conditions.
Key Features:
- 200W Ultra-High Power Output — Highest-power 12V panel in the SLD Tech lineup, ideal for off-grid homes and high-demand applications
- Exceptional +5W Power Tolerance — Guaranteed minimum 200W output, may produce up to 205W (better than standard +3%)
- Industry-Leading 22.0% Efficiency — Premium monocrystalline cells deliver maximum power per square foot
- Ultra-High Current Output (10.85A) — Fastest battery charging available, ideal for 400Ah+ battery banks
- 64-Cell Design for 12V — Optimized voltage (18.44V Vmp) for efficient 12V battery charging
- Extended Warranties — 10-year workmanship / 25-year linear power warranty
- Professional-Grade Construction — Heavy-duty frame and tempered glass for decades of outdoor use
The 61.81" × 27.76" × 1.38" form factor and moderate 26.84 lb weight make the ST-200Q-12Y ideal for applications requiring maximum 12V power output: off-grid homes and cabins requiring high-power 12V systems; large RV and motorhome installations with high energy demands; marine house bank charging for liveaboard cruising yachts; backup power for remote facilities and workshops; commercial applications requiring ultra-fast 12V battery charging; and high-capacity portable power stations.
Its nominal 12V DC output (18.44V Vmp, 21.64V Voc) is optimized for charging 12V battery banks with standard PWM or MPPT charge controllers, and the exceptional 10.85A current output enables the absolute fastest charging rates available in a 12V panel — capable of fully charging a 300Ah battery bank in 6-8 hours of good sunlight.
Built for durability in harsh outdoor environments, the ST-200Q-12Y combines a heavy-duty anodized aluminum frame with high-transparency, low-iron tempered glass to deliver long-term reliability in extreme conditions.
The panel is engineered to withstand wind loads up to 2400 Pa (negative) and snow loads up to 5400 Pa (positive), and is tested for salt mist corrosion resistance (IEC 61701) — making it suitable for marine, coastal, and high-altitude installations where environmental exposure is severe.
Advanced cell technology and qualified materials provide high resistance to Potential Induced Degradation (PID), ensuring the panel maintains its performance over decades even in high-voltage systems (rated to 1000V DC). The ST-200Q-12Y's outstanding low-light performance ensures continuous energy production during early morning, late afternoon, overcast conditions, and partially shaded scenarios.
Key Specifications:
| Specification | Details |
|---|---|
| Model Number | ST-200Q-12Y |
| Manufacturer | SLD Tech (formerly Solarland) |
| Cell Type | Monocrystalline silicon |
| Number of Cells | 64 cells (4×16 configuration) |
| Maximum Power (Pmax) | 200W |
| Module Efficiency | 22.0% |
| Voltage at Pmax (Vmp) | 18.44V |
| Current at Pmax (Imp) | 10.85A |
| Open-Circuit Voltage (Voc) | 21.64V |
| Short-Circuit Current (Isc) | 11.56A |
| Nominal System Voltage | 12V DC |
| Power Tolerance | 0 to +5W (positive only) |
| Operating Temperature | -40°C to 85°C (-40°F to 185°F) |
| Maximum System Voltage | 1000V DC |
| Temperature Coefficient (Voc) | -(80±10) mV/°C |
| Temperature Coefficient (Isc) | (0.065±0.015) %/°C |
| Temperature Coefficient (Pmax) | -(0.5±0.05) %/°C |
| NOCT | 47±2°C (at Air 20°C, Sun 0.8kW/m², wind 1m/s) |
| Wind Load (negative) | 2400 Pa |
| Snow Load (positive) | 5400 Pa |
| Module Dimensions | 61.81" × 27.76" × 1.38" (1570mm × 705mm × 35mm) |
| Weight | 26.84 lb (12.18 kg) |
| Frame Material | Heavy-duty anodized aluminum |
| Glass | High-transparency, low-iron tempered glass |
| Junction Box | Weather-sealed with bypass diodes |
| Carton Dimensions | 63.58" × 29.53" × 2.76" (1615mm × 750mm × 70mm) |
| Packing | 1 unit per carton |
| PID Resistance | High (advanced cell technology) |
| Salt Mist Resistance | IEC 61701 certified |
| Product Workmanship Warranty | 10 years |
| Power Output Warranty | 25 years (linear: 97% @ 5yr, 90% @ 10yr, 80.68% @ 25yr) |
| Typical Applications | Off-grid homes, large RVs/motorhomes, liveaboard yachts, remote cabins, backup power, high-capacity battery charging, tiny homes, commercial 12V systems, portable power stations |
Specs & Info