Order today — we confirm lead time at checkout
Call 888-876-0007 for a pallet-quote
Delivery timeframe shown above at checkout
Unlimited lifetime support, always available.
Trade pricing on 169 authorized brands. Full OEM warranties. 7-10 business days delivery.
Shop All ProductsPremium monocrystalline and bifacial panels with 25-year warranties from authorized manufacturers.
Shop Solar PanelsString, micro, and hybrid inverters from 8+ authorized brands. Full warranty and technical support.
Shop InvertersHome and commercial battery systems from leading manufacturers. Grid-tied and off-grid options.
Shop BatteriesRoof and ground mount systems from IronRidge, Unirac, and K2. All components, one catalog.
Shop RackingMPPT and PWM charge controllers for off-grid and hybrid solar systems from authorized brands.
Shop ControllersHome standby, portable, and commercial generators. Automatic transfer switches and installation accessories.
Shop GeneratorsHome and commercial EV chargers. Smart connectivity and universal compatibility.
Shop EV ChargersBreakers, panels, wire, conduit, and safety switches from Square D, Siemens, Eaton, and more. Not just solar.
Shop Electrical50,000+ SKUs, 169 authorized brands. Our team helps you find the right products for any project.
Get a Quote
Model FSM636-190W | Monocrystalline | 36 Full Cells | Monofacial | 1000V System Voltage
The Flagsun Green Power FSM636-190W monocrystalline solar panel delivers reliable 190 W power output for small to medium systems. It is designed for off‑grid, backup, and residential applications that demand stable performance and long service life. High efficiency monocrystalline cells help maximize energy harvest even on limited roof or ground space. The module operates within a wide temperature range from -40 to 85 °C for year round use. A panel efficiency up to 18.9 percent supports excellent power density per square meter. Power tolerance from 0 to plus 3 percent ensures dependable output with reduced performance risk. Tempered glass and an anodized aluminium frame add mechanical strength and weather protection. The FSM636-190W sits in a versatile 180 to 200 W product range, giving system designers flexible matching options. It is manufactured in China by Flagsun Green Power Co., Ltd., a specialist in cost effective solar modules. This robust design makes the panel a practical choice for cabins, RV systems, telecom loads, and small grid tie arrays.
High efficiency power density: Panel efficiency up to 18.9 percent allows more power from compact mounting areas.
Reliable output tolerance: A 0 to plus 3 percent power tolerance supports consistent field performance over time.
Stable electrical performance: Optimized Vmpp at 18.3 V and Impp at 10.38 A simplify system matching and controller sizing.
Robust mechanical design: 3.2 mm tempered glass and an anodized aluminium frame enhance durability in outdoor conditions.
Wide operating temperature range: The module operates from -40 to 85 °C for reliable service across harsh climates.
Versatile power range options: The 180 to 200 W series supports flexible string design and project optimization.
This monocrystalline solar panel converts sunlight directly into usable DC electricity through high purity silicon cells. When sunlight reaches the cell surface, photons transfer energy to electrons in the semiconductor. These energized electrons move through an internal electric field to create current flow. At the array level, panels are wired in series or parallel to reach the desired voltage and current. The FSM636-190W delivers 190 W at standard test conditions, with Vmpp at 18.3 V and Impp at 10.38 A. Its open circuit voltage of 23 V and short circuit current of 10.89 A define system design limits. Temperature coefficients control how power changes under real operating temperatures. The tempered glass and aluminium frame protect the cells while allowing high light transmission. Energy produced by the panel is normally routed to a charge controller, hybrid inverter, or DC load. From there it can be stored in batteries, converted to AC power, or consumed directly on site.
Monocrystalline cell conversion: High purity monocrystalline cells absorb incoming sunlight across the front surface area. An internal junction separates charge carriers and drives electrons into the external circuit. This process yields stable DC output suitable for battery charging and inverters. The 18.9 percent module efficiency helps maximize energy yield under standard conditions.
Voltage and current operating point: The module operates around its maximum power point at 18.3 V and 10.38 A. MPPT charge controllers or inverters track this point to extract maximum available power. Open circuit voltage at 23 V provides headroom for cold conditions and wiring losses. The short circuit current of 10.89 A defines conductor and protection device sizing.
Thermal behavior and reliability: Power output decreases slightly as cell temperature rises above test conditions. The temperature coefficient of Pmax is -0.43 percent per degree Celsius, managing performance loss. Voc changes with a coefficient of -0.34 percent per degree Celsius, affecting cold weather voltage. Isc increases marginally with a 0.049 percent per degree Celsius coefficient, maintaining current stability.
| Brand / Seller | Flagsun Green Power Co., Ltd. |
| Country of Manufacture | China |
| Model Number | FSM636-190W |
| Cell Technology | Monocrystalline silicon |
| Cell Count and Type | 36 full cells, standard configuration |
| Module Type | Monofacial framed module |
| Power Range Series | 180 Wp to 200 Wp |
| Maximum Power (Pmax) | 190 Wp |
| Power Tolerance | 0 to +3 % |
| Panel Efficiency | 18.9 % (series range 17.9 to 19.9 %) |
| Voltage at Maximum Power (Vmpp) | 18.3 V |
| Current at Maximum Power (Impp) | 10.38 A |
| Open Circuit Voltage (Voc) | 23 V |
| Short Circuit Current (Isc) | 10.89 A |
| Nominal Operating Temperature | 45 ± 2 °C |
| Operating Temperature Range | -40 to 85 °C |
| Temperature Coefficient of Pmax | -0.43 % / °C |
| Temperature Coefficient of Voc | -0.34 % / °C |
| Temperature Coefficient of Isc | +0.049 % / °C |
| Front Glass Type | Tempered solar glass |
| Glass Thickness | 3.2 mm |
| Frame Material | Anodized aluminium alloy frame |
Certifications: Standard international module certifications typically apply; confirm exact certificates with Flagsun.
Inverter Compatibility: Suitable for most modern PWM and MPPT charge controllers and string inverters within rating limits.
Environmental: Designed for outdoor use with UV resistant materials and tempered glass front surface.
Warranty: Standard manufacturer product and performance warranty available on request from Flagsun Green Power Co., Ltd.
● Available | Contact us for lead time and pricing
From hurricanes to blackouts, reliable solar power ensures you're able to keep your home & family safe no matter what comes your way.
Making one-click solar solutions simple since 2018. Whether you’re powering a cabin, charging devices, or backing up your home.
Say goodbye to reliance on the energy companies. Enjoy the same freedom that 50,000+ customers have with their own solar power system.
$150 Value - Free Offer (Limited Time Only!) No Strings Attached. Totally Free. Takes Less than 2 Minutes.