400W 12V Solar Panel Kit ,400W Mono Rigid Solar Panels+40A MPPT Solar Charge Controller

Regular price $636.99
Sale price $636.99 Regular price
Unit price
About this item

  • This Off-Grid Solar System Kit includes four 100W Monocrystalline Solar Panels and one 40A MPPT Solar Charge Controller with Bluetooth Adapter, one pair 10ft 12AWG MC4 Solar Cables, one pair 6ft 12AWG Battery Cables, four sets Solar Panel Mounting Brackets and one set Y Branch Adapter Cable.
  • Panel High-performance Monocrystalline solar cells that offer higher efficiency up to 21% than Polycrystalline in bright weather conditions, it provides a long service life and is virtually maintenance-free.
  • System Detect: The 40A MPPT controller automatically recognizes 12V and 24V systems
  • Smart Tech: providing the best level of charge in any condition and protecting against over-charge, over-discharge, overload, and short circuit.
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  • Estimated Delivery:Jul 20 - Jul 24

  • Free Shipping & Returns: On all orders over $100

400W 12V Solar Panel Kit ,400W Mono Rigid Solar Panels+40A MPPT Solar Charge Controller

400W 12V Solar Panel Kit ,400W Mono Rigid Solar Panels+40A MPPT Solar Charge Controller

Regular price $636.99
Sale price $636.99 Regular price
Unit price
Shipping and Refund
Warranty Policy
400W 12V Solar Panel Kit

 400W 12V Solar Panel Kit

Off-Grid Ready, Highly Efficient, & Reliable

This Off-Grid Solar System Kit is a great option for a variety of applications, such as RVs, motorhomes, small homes, sheds, boats, remote farms, gardens, etc. This simple kit is a clean energy, upgradeable, and long-term solar system. Depending on your unique application, this system can both help reduce energy costs when incorporated into an electrical system or provide free and consistent electric power to any place outside of a power grid.

400W 12V Solar Panel Kit

400W 12V Solar Panel Kit
40a  mppt solar charger controller
solar panel adapter

400w solar panel kit applies to a wide range of scenarios

The 400W solar panel kit is suitable for many scenarios. For remote areas or outdoor explorers, it is a reliable source of power to support the operation of electronic devices. For homes, it serves as a back-up power source to ensure the proper functioning of critical equipment during emergencies. For small businesses, such as cafes or farms, it reduces reliance on the traditional power grid and cuts operating costs. Whether for outdoor camping, home backup, or commercial use, the 400W solar panel kit has become an indispensable energy solution for modern life with its high efficiency, environmental friendliness and convenience.


  1. Q: What is the maximum output power of this 400W solar panel kit?
    A: The maximum output power of this kit is 400W.
  2. Q: What devices can it power?
    A: This kit is suitable for a wide range of devices, including home appliances, outdoor lighting, power tools, etc. However, the exact power supply capacity depends on the power of the device and the usage time.
  3. Q: How do I install and configure this kit?
    A: Installing and configuring the solar panel kit requires some specialized knowledge and experience. It is recommended to follow the product manual or consult a professional for installation.
  4. Q: Will the solar panels still produce power if it is cloudy or rainy?
    A: Rainy weather will affect the efficiency of the solar panels, but it is still possible to generate electricity, just at a lower capacity.
  5. Q: How do I maintain and care for my solar panels?
    A: Solar panels need to be cleaned regularly to avoid dust and dirt from affecting their performance. It is also important to avoid impacts and scratches on the surface of the solar panel.
  6. Q: What is the lifespan of a solar panel?
    A: The lifespan of a solar panel varies depending on the material and build quality, but generally speaking, quality products can last up to 20 years or more.
  7. Q: Does this solar panel kit include a battery storage system?
    A: This depends on the specific kit configuration. Some kits may include a battery storage system to provide power when the sun is low or at night, while others may require the user to purchase one separately.
  8. Q: How do I get help if my solar panels fail?
    A: If the solar panel malfunctions, it is recommended that you first consult the troubleshooting section of the product manual. If the problem still cannot be solved, you can contact the manufacturer or distributor of the product for technical support.

TOPBULL Shipping and Refund Policy

Shipping Policy:

1. Shipping Methods:

We have local warehouses in the United States and Europe, North American orders will be shipped from the U.S. warehouse, European orders will be shipped from Germany or Italy, all packages will arrive at the customer in 3-10 days after shipment. We offer several shipping methods to meet your delivery needs. The shipping options and estimated delivery dates will be provided during the checkout process.

2. Order Processing Time:

Please allow 1-3 business days for order processing. Once your order has been shipped, you will receive a confirmation email with tracking information.

3. Shipping Rates:

Shipping rates are calculated based on the weight of your order and the selected shipping method. The total shipping cost will be displayed during the checkout process.

Country Estimated delivery time Order 0-100 USD Shipping Rates Order above 100 USD Shipping Rates
USA 3-15 Natural Days 10 USD 0
Canada 3-15 Natural Days 10 USD 0
United Kingdom 3-15 Natural Days 10 USD 0
France 3-15 Natural Days 10 USD 0
Germany 3-15 Natural Days 10 USD 0
Italy 3-15 Natural Days 10 USD 0
Spain 3-15 Natural Days 10 USD 0
Australia 3-15 Natural Days 10 USD 0

4. Free Shipping Policy:

For orders over $100, we offer free shipping.

5. International Shipping:

We currently offer international shipping to select countries. International shipping rates and delivery times vary. Customs and import duties may apply and are the responsibility of the customer.

We currently ship to the United States, Canada, United Kingdom, France, Germany, Italy, Spain, and Australia (excluding islands and remote areas).

6.Customs Duty

All customs duties and taxes are the responsibility of the consumer, the specific cost of each country's customs policies

7. Tracking Your Order:

You can track your order by using the tracking number provided in the shipping confirmation email. If you have any issues with tracking your order, please contact our customer support.

Refund Policy:

1. Returns:

We accept returns within 30 days of the purchase date. To be eligible for a return, the item must be unused and in the same condition as received. It must also be in the original packaging.

2. Refund Process:

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

3. Refund Timeframe:

Refunds will be processed within 7-10 business days of receiving the returned item. The refund will be issued to the original payment method.Refunds will be returned to your account within 3-15 business days after we initiate them.

4. Exchanges:

If you need to exchange an item, please contact our customer support service@topbullshop.com. Exchanges are subject to product availability.

5. Return Shipping:

Customers are responsible for return shipping costs unless the return is due to an error on our part.

6. Damaged or Defective Items:

If you receive a damaged or defective item, please contact our customer support immediately. We will provide instructions on how to return the item for a replacement or refund.

TOPBULL warranty

1. Limited Warranty:

TOPBULL offers a limited warranty on all products against defects in materials and workmanship under normal use for a period of 1 year. The warranty period starts from the date of purchase.

2. Warranty Coverage:

This warranty covers defects in materials and workmanship of the product under normal use. It does not cover damage caused by accident, misuse, neglect, unauthorized modifications, or any other circumstances beyond normal wear and tear.

3. How to Claim Warranty:

To initiate a warranty claim, please contact our customer support at service@topbullshop.com within the warranty period. Provide your order number, a detailed description of the issue, and, if possible, attach relevant photographs.

4. Evaluation and Resolution:

Our customer support team will evaluate the warranty claim and determine the appropriate course of action. This may include repair, replacement, or refund at the discretion of TOPBULL.

5. Return of Defective Product:

If requested, you may need to return the defective product. Instructions for the return process will be provided by our customer support team. Customers are responsible for the cost of returning the item.

6. Exclusions:

The warranty does not cover normal wear and tear, damages resulting from improper maintenance, unauthorized repairs, or modifications. It also does not cover incidental or consequential damages.

7. Warranty Transferability:

This warranty is non-transferable and is only applicable to the original purchaser of the product.

8. Duration of Implied Warranties:

To the extent permitted by law, any implied warranties, including the implied warranties of merchantability and fitness for a particular purpose, are limited to the duration of this express warranty.

9. Additional Terms:

TOPBULL reserves the right to update or modify the terms of this warranty policy without prior notice. Any changes will be effective immediately upon posting on our website.
If you have any questions or concerns regarding our warranty policy, please contact our customer support team at service@topbullshop.com for assistance.

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