400W (100W*4PC) Solar Panels [Special Offer: Free MPPT Controller]
⚡Early Black Friday Deals：Buy 1 Get 1 Free Controller
⚡Early Black Friday Deals：Buy 1 Get 1 Free Controller
30A MPPT Charge Controller
- Innovative MPPT technology 99% tracking efficiency, 97% conversion efficiency. 30% more efficient than PWM controllers
- Multiple intelligent protections.
- 3-stage charging algorithm，Perfect SOC function, Protect the battery.
- Industrial-grade main control chip: 16AD sampling accuracy, automatic focusing MPPT tracking charging, non-stop detection, bidirectional focusing tracking.
- Large-screen LCD display, adjustable charging and discharging parameters.
Get a free controller for the 400W solar panel (100W*4pcs)
Buy more for more controllers.
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Limited-Time Offer: Get a FREE 30A MPPT Charge Controller! Use code WE15 for 15% off your first order. Buy more, save more!
This product is a 4-piece 100W monocrystalline solar panel, and they can be used in off-grid situations including RV, boat, sailboat, yacht, truck, cabin, camper, tent, trailer, and golf cart.
Certified Quality for Consistent Performance
Extensive testing guarantees certified quality, so you can trust in consistent power output
24% Conversion Efficiency for Outstanding Performance
Enjoy sustainable and reliable electricity, with guaranteed performance of over 80% for 25 years.
Up-Grade 12BB Cell
Enjoy higher conversion efficiency and longer service life, ensuring you get the most out of your solar investment.
Built for Excellence Materials
Each solar panel is built with premium components and precision manufacturing to ensure excellent solar conversion efficiency and a longer lifespan.
Effortless Connectivity for Flexible Solutions
Enjoy effortless connectivity with excellent scalability—connect in series or parallel to maximize your investment. Perfectly suited for 12V systems, you can easily combine multiple panels to achieve 24V or 48V configurations.
25-Year Warranty
Long-term protection, reliability you can count on, and peace of mind for your solar investment.
| Includes 100Watt * 4 pcs | |
| Module Performance(100watt) | |
| Max Power | 100W |
| Cell Type | Monocrystalline |
| Maximum Power Voltage | 19.5V |
| Open Circuit Voltage | 23.4V |
| Maximum Power Current | 5.31A |
| Short Circuit Current | 5.64A |
| Mechanical Specifications | |
| Dimension | 1010 x 460 x 30 mm |
| Weight | 4.9 kg |
| Connector | MC4 Compatible |
| Output Cables | 4 mm² |
| Frame | Anodized aluminium alloy |
| Withstanding Hail | 5400 Pa |
| Wind Resistance | 2400 Pa |
| Junction Box | IP67 rated |
| Protection Class | IP68 |
| OPERATING PARAMETERS | |
| NOCT | 41 - 45 °C |
| Temperature Coefficient of Voc | -0.25% / °C |
| Temperature Coefficient of Isc | 0.04% / °C |
| Temperature Coefficient of Pm | -0.34% / °C |
| Temperature Range [°C] | -40 - +85 °C |
| 30A MPPT Charge Controller Specs | |
| Charging Efficiency | ≥97% |
| Maximum Output Current Rating | 30A |
| System Voltage | 12/24V |
| USB Output | 5V/2A |
| Self-Consume | <10mA |
| Connector Type | MC-4 |
| Battery Types | AGM, Gel, Flooded, Lithium-iron Phosphate |
| Input Fuse Rating | 60A |
| Output Fuse Rating | 50A |
| Dimensions (LxWxH) | 170 x 92 x 45 mm / 6.69 x 3.67 x 1.85 inch |
| Weight | 450g / 0.99 lb |
| Operating Temperature | -4℉ - 113℉ / -20 ℃ - 45℃ |
How do I use this solar panel?
Our solar panels are designed with pre-drilled holes for easy installation. The solar panel must be connected to a charge controller, which in turn connects to a battery to store the energy. You will need an adapter kit cable to connect the solar panel to the charge controller, and a tray cable to connect the charge controller to a deep-cycle battery. After that, you need to connect an inverter to supply power.
What are the possible applications for this solar panel?
Tempered glass panels are very versatile and can be used in homes, on rooftops, RVs, farms, boats, sheds, or other locations requiring power management. Foldable solar panels are generally used for outdoor settings, such as RVs, boats, and camping scenarios.
Can this solar panel generate power in cloudy conditions?
Yes. This WERCHTAY solar panel is made from high-quality materials and can still function in cloudy conditions. However, please note that its power conversion rate will be lower compared to sunny conditions.
What other equipment do I need to power a load with the solar panel?
You will need a charge controller, a battery, and an inverter to connect and complete the solar panel's power generation system.
Can the solar panel withstand strong winds and snow loads?
Our solar panels use corrosion-resistant aluminum frames, ensuring they operate under various weather conditions. They can withstand winds up to 2400Pa and snow loads up to 5400Pa.
Why is my solar panel's output low?
The performance of solar panels can be affected by various factors. Common environmental conditions, such as indirect sunlight, higher temperatures, cloudy skies, and dust or dirt accumulation on the glass, can all lead to reduced power output.
How should I connect the solar panels in the circuit (series or parallel)?
Solar panels can be connected in series or parallel to meet your circuit size and power requirements. Connecting panels in series will add their working voltage output together while keeping the current output the same as a single panel. Connecting panels in parallel will add the current output of each panel while keeping the voltage output the same as a single panel. To achieve the best power output and system rating, you may use a combination of series and parallel connections.
How many solar panels do I need?
The best way to determine how many solar panels you need is to understand and define the power load required by your system. Power is measured in watts, and capacity is usually measured in watt-hours (watts output multiplied by the required operating hours, then multiplied by a safety factor of 1.5-2). Therefore, it is wise to first determine the size of the battery bank based on the minimum required capacity, and then decide how many solar panels or how much power input is needed.
What is the difference between off-grid and grid-tied systems, and how are they used differently?
An off-grid system, also known as a standalone solar power system, does not rely on an external power grid and forms a self-sufficient power supply system. A grid-tied system, or grid-connected photovoltaic system, is connected to the external power grid and works together with it to supply power.
How do I complete an off-grid solar power system?
The solar panels must be connected to a charge controller to regulate the current and to a battery to store the energy. You will need an adapter kit cable to connect the solar panels to the charge controller and a tray cable to connect the charge controller to a deep-cycle battery.
How many kilowatt-hours does the solar panel generate per day?
Under ideal conditions, i.e., ample sunlight and no energy losses, watt-hours = power per panel * hours of sunlight per day. The actual power generation will be affected by various factors such as weather conditions and light intensity. For example, a 100W solar panel exposed to direct sunlight for 5 hours a day can provide an average of 400-500 watt-hours of electricity (depending on sunlight availability).
Are Wechtay products environmentally friendly?
We are committed to offering energy-efficient and eco-friendly power solutions. Our solar systems are designed to reduce carbon footprints and provide customers with a sustainable energy experience.
Does Wechtay offer international shipping?
Yes, we offer international shipping. Shipping fees and delivery times may vary depending on the destination. You can view the related costs and estimated delivery times during checkout.
How can I contact Wechtay customer service?
You can contact us via email, phone, or online chat. Our customer service team will respond to your inquiries during business hours.
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Suitable for all weather conditions
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Easy to install, pre-drilled mounting holes; MC-4 connector
Versatile Solution for Diverse Applications
Our 400w solar panels are ideal for a wide range of off-grid environments, including roofs, RVs and campers, boats and yachts, cabins and trailers, tents and camping setups, golf carts, and utility vehicles.
experience the freedom of energy independence wherever you go!
Embrace Nature, Live Green
Connect with nature and enjoy a sustainable lifestyle without leaving a heavy footprint.
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Expert Guidance for All
Expert Guidance for All
Wechtay offers free consultations to offer expert solar energy advice, regardless of purchase. Our mission is to empower you with the knowledge to confidently choose renewable energy.
Sustainability in Action
Sustainability in Action
Our products are not just a testament to cutting-edge technology, but a commitment to the future. Our customers use Werchtay solar panels to brighten their homes while contributing to the sustainability of our planet. Join us in driving the green revolution together!
Scenario-Based Solar Solutions
Scenario-Based Solar Solutions
Wechtay offers customized solar solutions based on specific needs, ensuring that each customer gets the ideal setup for their unique energy needs.
High-Performance, Low Cost
High-Performance, Low Cost
At Wechtay, We understand the importance of technology and affordability, and Wechtay products strike the perfect balance between performance and cost-effectiveness. Providing a quality, reliable product at an affordable price.
