FAQ

During the day, when the sun is shining, solar panels absorb solar energy and convert it into electricity and store it in rechargeable batteries.

At the same time, the charge controller will help to adjust the charging power source at a stable level and not exceeding the allowed limit.

At night the light will automatically bright after fully charged.

All products of Viet Sky Solar are using 100% new battery, charging and discharging cycle up to 2000 times, depending on the usage culture, the light life can work up to 5 years.

During the day, the longer the light can be charged, the longer the light can work in the nighttime.

Typically, Viet Sky Solar‘s light products have 12 hours or more of working time when fully charged.

Battery quality is the most important for solar lights.

As we usually heard that explosion issues happened in warehouse, on the way shipping, even when you are using installation.

So battery safe we have to consider firstly. All our battery are made by high quality materies, tested by high-tech machines. Safe power is first!

To ensure the best performance, the lights need to be charged within 2 days before starting to use.

That means, in the first day, you charge in the day, but not to use at night, then continue charging on the 2nd day and can be used right that night.

Note: You need to press the ON button to turn on the light before charging.

Solar lights should be installed in airy areas, not obstructed by obstructions, canopies, installed at a slanting angle to limit the accumulation of dust or water stagnation on the surface of solar panels.

Typically, solar light products will work better on sunny days, because the battery is fully charged to ensure performance, and will be affected in rainy, cloudy days.

Viet Sky Solar‘s light products have been used with Mono solar panels combined with Double MPPT technology to:

1. Bring better charging efficiency in adverse weather conditions.
2. Make sure your light will bright for the whole night.

The installation of a solar light is relatively simple because there is no need to use wires or connect to a power source, our solar light kit includes complete assembling accessories such as racks, screws, so you can easily install on a pole or on your wall to use.

1. First, check if the light is on or not, the light needs to be pressed ON button to start using (note: you need to charge the light 2 days before using for the first time).
2. Second, check to make sure the light is in a dark area, because the light will not automatically turn on when there is a good light source nearby the light.
3. If the light is still not working, check if the battery is fully charged, move the light or solar panel to a more advantageous position to receive more sunlight during the day.

There is no regular maintenance required for a solar lighting system. However, it is helpful to keep the solar panels clean, especially in a dusty climate.

A sun hour is a unit of measurement of the intensity of sunlight on the earth at a given time that can be used for generation of solar power, recognizing factors such as climate and weather.

A full sun hour is measured as the intensity of sunlight at noon, whereas less than a full sun hour will result during the hours before and after noon.

For solar light, you can tell us about your needs, purposes, and give us information about the expected installation height so we can advise the most suitable light.

For projects, Viet Sky Solar also provides free design consultancy, you need to provide us the length and width of the road, the expected installation height, the desired light color and the desired delivery time as well, so we can advise on the type of street light and the number of lights accordingly.

Products are warranted for 2 years, 1 exchange 1 in the first year if the product has the following problems:

1. Battery panels: The product itself has a cracked cell or does not generate a charging power

2. LED Chip: The product itself has 10% of LED chips that are not working or not shining

3. Battery: The product itself is burn, leaks, cannot be charged or discharged

Each of our products has a separate series number, printed simultaneously on the box and product, the series number will be recorded on the warranty card included in the box. We will use the series number to manage your product warranty.

For solar light we have 2 kinds of product: street light and flood light. Each kind has different designs and capacities to suit your needs, so the price is also different.

You can contact Viet Sky Solar at one of the following information channels to know more about the price of the product:

Hotline: 0965 407 369 (Ms. Tra My)
Email: vksolar000@gmail.com
Website: www.vksolar.com

Facebook: https://www.facebook.com/NANGLUONGMATTROI.VIETSKYSOLAR

Viet Sky Solar Co., Ltd. specializes in providing high-class products of solar lights and solar systems.

You can contact us through the following channels for more information of the products or need ant support related to Viet Sky Solar‘s products:

1. Ms. Tran Thi Tra My, phone: 0965 407 369
2. Mr. Huynh Minh Khoa, phone: 0366 522 362
3. Ms. Nguyen Dinh Thuy Vy, phone: 0971 472 494
4. Ms. Le Thi Thao Ngan, phone: 0962 878 732

In addition, you can access the following channels to learn more about us:

Facebook: https://www.facebook.com/NANGLUONGMATTROI.VIETSKYSOLAR
Youtube:
https://www.youtube.com/channel/UCf8u1BawwuTUkioxfvhrNIA

Viet Sky Solar is still looking for distributors all over Vietnam, you can contact us at the following informations to learn more about the company, products and policy for distributors:

1. Ms. Tran Thi Tra My, phone: 0965 407 369
2. Mr. Huynh Minh Khoa, phone: 0366 522 362
3. Ms. Nguyen Dinh Thuy Vy, phone: 0971 472 494
4. Ms. Le Thi Thao Ngan, phone: 0962 878 732

 In addition, you can access the following channels to learn more about us:

Facebook: https://www.facebook.com/NANGLUONGMATTROI.VIETSKYSOLAR
Youtube:
https://www.youtube.com/channel/UCf8u1BawwuTUkioxfvhrNIA

Viet Sky Solar welcomes partners who understand and follow the business direction of the company, which is not only providing products, but also providing the best quality service for the customers. Viet Sky Solar always tries best to support the distributors to ensure long-term development for both sides.

Solar panels convert solar radiation into direct current (DC). The DC will be converted into alternating current (AC) by inverter equipped with MPPT (Maximum Power Point Tracking) technology to optimize the energy generated from the solar system.

The AC power from the solar battery system will be connected to the region’s main electrical cabinet, synchronized into the existing grid, providing power in parallel with the mains power source, helping to reduce power consumption from mesh of area used.

When the grid is lost, the inverter will quickly disconnect from the grid. This ensures that, in the event of a power grid, the solar battery system does not emit to the grid, endangering the repair person.

Yes. Solar cells are mostly silicon, the primary component of sand. There is no exhaust and no toxic materials to leak out of the system.

The electricity coming through the inverter is just like the electricity coming from household wall sockets; you should use the same care you would with utility power.

All components are approved for utility interconnection and are installed according to standard construction and health and safety practices.

Solar panel failure is most often caused by water damage to the panel, sealant, or connections.

To prevent damage or failure, mount the panel carefully. Be sure not to fix it horizontally, which encourages water collection in the frame.

Also, allow for a sufficient air gap beneath the panel. Keeping your panel dry and clean will ensure efficient, maximum output.

For solar system, you need to give us informations about monthly electricity bill, available installation area, we can calculate and advise you about suitable installing capacity.

Depending on the capacity of the system, the installation time may vary. Typically, with not too large, used in households systems, it will take about 3 to 5 days to complete.

Depending on the installed capacity, solar power systems will have different prices.

You can contact Viet Sky Solar at one of the following information channels to know more about the price of the product:

Hotline: 0971 472 494 (Ms. Thuy Vy)
Email: vksolar000@gmail.com
Website: www.vksolar.com

Facebook: https://www.facebook.com/NANGLUONGMATTROI.VIETSKYSOLAR

We guarantee a 25-year performance for the solar system.

For the soalr panels and the inverters, you can apply the warranty policy of the company:

10-year warranty with solar panels.

5-year warranty with inverter (you can buy a 10-year warranty from the company).

Viet Sky Solar Co., Ltd. specializes in providing high-class products of solar lights and solar systems.

You can contact us through the following channels for more information of the products or need ant support related to Viet Sky Solar‘s products:

1. Ms. Tran Thi Tra My, phone: 0965 407 369
2. Mr. Huynh Minh Khoa, phone: 0366 522 362
3. Ms. Nguyen Dinh Thuy Vy, phone: 0971 472 494
4. Ms. Le Thi Thao Ngan, phone: 0962 878 732

In addition, you can access the following channels to learn more about us:

Facebook: https://www.facebook.com/NANGLUONGMATTROI.VIETSKYSOLAR
Youtube:
https://www.youtube.com/channel/UCf8u1BawwuTUkioxfvhrNIA

Modern solar cells with practical efficiency were invented in the early 1950s, and have been used to power satellites since 1959.

They became popular for terrestrial applications in the mid-1970s, mostly for remote telecommunications, navigational aids and other rugged, remote industrial uses including microwave, TV, radio and cellular repeater stations.

They have been powering urban applications such as roadside emergency telephones and traffic signs since the mid-1980s.

With prices dropping steadily, they are now becoming affordable for urban or remote homes and businesses.