General questions：

Do you have a dealer program? I would like to sell your products.

Yes. For more information, contact sales@nstenergytech.com for domestic or international inquiries.

Can I be notified if you ever offer any discounts or new products?

Sign up to receive our email communications in the footer of the website. You will be the first to know about any email-exclusive deals and product launches.

I did not find the answer to my question, how can I reach you?

Please feel free to reach us at +86 18061616729, e-mail us at sales@nstenergytech.com, or chat live with a NSTsolar representative by clicking the chat icon in the lower right-hand corner of the website.

Where can I find product manuals or user guides?

At the bottom of the page of the product you purchased, there is technical parameter information available for you to download.

What kind of warranties cover your solar products?

Framed/Rigid Panels 200w-600w (mono and poly) 25-Year Transferable Power Output Warranty and 5-Year Material and Workmanship Warranty.

Technical Questions：

What is the difference between DC and AC power?

DC (direct current) power is drawn directly from the battery and will run several types of RV appliances, like lights and water pumps. AC power (alternating current), is what is used in your home.

What is the difference between on-grid and off-grid?

On-grid systems tie directly to your utility grid, offering an alternative source of energy in addition to what your utility company provides. By utilizing on-grid solar systems, you can greatly or completely reduce your electricity bill. In addition, depending on the size of your on-grid system, you may receive monetary returns.
Off-grid systems do not tie to the utility grid and are sustained using a battery bank. The battery bank can be hooked up to an inverter, which converts DC voltage to AC voltage allowing you to use any AC appliances or electronics. Common off-grid applications include cabins, Off-Grid vehicles, boats, and dry camping. Off-grid systems can also be used in a variety of other applications, including emergency power backup during a power outage

How long can I run my appliances or electronics on solar?

That depends on the number of appliances, how much power they consume, and what size of battery bank you have installed. Contact our customer service by phone at +86 18061616729 or by email at sales@nstenergytech.com to help determine your requirements.

What is the difference between amps, watts, and volts?

Think of your power system as a gas station. Amps are like gallons of gas that fill your RV’s battery, and volts are like the pressure at the gas pump. You need a certain voltage ‘pressure’ to fill your batteries (the gas tank). – Watts are simply the amps multiplied by the volts.

What is the difference between a solar kit and a solar system?

Our solar kits provide the basics you need for charging your Home battery — they contain a solar panel, solar charge controller, and cables. A solar system includes more components (such as an inverter, transfer switch, battery charger, and fuse block).

Can the Solar Module drain my battery at night?

Once the solar charge controller is installed there is no danger of reverse current, so you may leave your panel installed overnight.

Can the Solar Module overcharge my battery?

Yes, but only if used without the charge controller. That is why it is important to use a solar charge controller. Do not connect the panel directly to the battery with wattages of 15 watts or higher. Always use it in conjunction with an appropriately sized solar charge controller.

Can I run my 110-volt appliances with my solar power system?

Yes. You can run your 110-volt appliances with the use of an inverter, which would attach to your battery to change the battery’s 12-volt (DC) energy into 110-volt (AC) or 220-volt (AC). The inverter is not included.

Can my panel be left outdoors without a protective covering?

Yes. The Solar Module has been weatherproofed and can be mounted outdoors without any additional protection.

How long will PV modules last?

NSTsolar Framed Solar Panels have a performance warranty of 25 years. After 5 years they should output more than 95% of the rated power, after 10 years it is 90%, and in 25 years it is 80%.

How does the solar system fare in extreme weather conditions?

The module temperature for our NSTsolar solar panels ranges from -40°C to 90°C. Whereas our charge controllers have an operating temperature of -35°C to 55°C. The majority of our solar panels are waterproof and do fare well in extreme conditions however, our charge controllers are not waterproof. We recommend storing and securing the charge controller in a well-ventilated dry space.

Will panels still charge on cloudy days?

This will also depend on the conditions. If it is cloudy and overcast, likely not. If it is cloudy and bright still, then it probably will charge but it won’t be very much.

Do you sell globally?

How do I check the status of my order?

You will receive an email confirmation with your tracking number once your order has shipped from our warehouse. If you didn't receive this email, check your spam or junk email folder or contact us by phone at +86 18061616729 or by email at sales@nstenergytech.com.

Thank you for choosing NSTsolar for your solar energy needs!