whc logo
[gtranslate]

FAQs

Have You Got Everything You Need to Know?

Whether you’re interested in the products that we provide or learning more about our comprehensive services, our compilation of questions and answers have you covered. Do you have concerns not addressed on our FAQ page? Contact our team today and get direct responses from industry experts.

General

Usually 3-5 days, for some solar products are 15-20 days.

The Town/District Agent:

Purchase one 40HQ container($155,000) within half a year.

The State/Province Agent:

Purchase one 40HQ container($155,000) every three month.

The Country/Nation Agent:

Purchase one 40HQ container($155,000) per month.

  1. Three new products to help you lead the market every year.
  2. Advanced technology and automatic production equipments, complete the order with quality and quantity guarantee.
  3. 13-year experience technical team offer you professional solar solution and customize according your requirements.
  4. 9 product design patents, offer clients regional market protection.
  5. Designated brand in 33 African countries.
  6. Rich experience on government’s projects, commercial projects and industry projects.
  7. Perfect after-sales service system.
  8. Great agency service and support.
  9. Competitor analysis for customers.

Our company has 13 years-experience on installing solar energy systems, with tens of thousands of successful engineering projects. Our various solar systems meet demands of every family’s daily use. You could purchase one set first to try, we will offer you free installation drawing to guide you, only after install by yourself, you could easily understand.

Yes sure, you could kindly leave your contact on our company website, so we could send you our factory video.

Located in Guangdong Province, China.

Yes sure, we can arrange and make an appointment in advance for you.

For solar panel is 2000pcs per day, for inverter is 500pcs per day, for solar light is 3000pcs per day, and for battery is 5000pcs per day.

Yes, you could kindly purchase and pay it first, we will reduce this cost on your next order.

Yes, we have CE, ISO-9001, UN38, IEC, ROHS, design patent certificates, etc.

Products

It’s very simple. This is a complete solar power system, through solar panels to absorb sunlight and transfer sunlight energy into electricity, stored electricity in batteries, and through the inverter to transfer DC to AC 220V/110V. People could easily plug home appliance to start use, such as loading air condition, refrigerator, TV and other appliances.

Usually 12hrs, some could work 3 days even in rainy days.

Yes sure. Most of our solar panels are made by half-cut technology. We are leader of solar industry and always keep our products upgrade, we hope to try our best to make our quality and service better, to improve your company reputation more greatly.

If the battery is low, should charge it first. Such as mobile phone, when the phone power is low, people will stop using and charging it first.

The MPPT controller has Max.PV open circuit voltage reach 150VDC, charging efficiency 30% higher than PWM, automatically match various voltage of 12V/24V/48V.

The PWM controller is weight light, intelligent and economic, automatically match various voltage of 12V/24V.

Hybrid inverter is built-in MPPT controller, the other inverter types are not build-in controller, could purchase controller separately.

For lead acid battery is 500-800 cycle times, for solar lithium battery is 2000-6000 cycle times.

High frequency means from about 300Hz down to 50Hz, low frequency is from 0Hz up to 50Hz.

Low frequency inverter comes with large power transformer, stronger and good for loading those home appliances which build-in motor, such as refrigerators, air conditioners, water pumps, etc. High frequency inverter has a small volume, light weight, economic and high efficiency.

Yes sure. We have been done many government projects such as 1MW, 2MW, 10MW and larger on grid systems. And we could customized solar solution according your requirements.

On grid PV station connects to public grid, it relies on country grid system to work and load household appliances. For the rest power will return to public grid and sell to electric power company. The main accessories are solar panels and solar inverter, no batteries.

Off-grid system is an independent power station, it loads home appliances by solar, and store energy by solar batteries. It’s not restricted by the grid, so it’s ideal for remote areas without grid such as isolated islands and areas that often lack of electricity.

Yes sure, the hot selling models are 12v 100ah, 12v 200ah.

Gel and lead acid are different materials, gel material is more durable and longer lifespan which reach 5-6 years, lead acid battery is 3-5 years.

  1. Lead acid and LifePO4 are different materials.
  2. Different lifespan, lead acid battery is 3-5 years and lifePO4 solar lithium battery is 10 years.
  3. Lead acid battery has excellent performance at both low and high temperatures, and lifePO4 solar lithium battery has high temperature resistance.
  4. Different warranty, lead acid battery is 12 months and lifePO4 solar lithium battery is 36 months.
  5. LifePO4 solar lithium battery’s weight is light than lead acid battery.
  6. Lead acid battery is 85% efficiency and lifePO4 solar lithium battery are 100% discharge.
  7. Different production technologyand internal structures.

Customization

Yes sure, we could customized according your specifications, such as for solar street light, solar system, etc. Please kindly share me details.

Service

Yes sure. We have professional after-sale service team, please kindly take product videos and pictures to send me, so our engineers could provide the most scientific solution to help you solve problem; If it is a product quality problem, we will offer free accessories during the warranty period.

Yes sure, below are our products warranty:

A. Solar Panel Warranty 60 Months
B. Lithium Iron Phosphate Battery Warranty 36 Months

Solar VRLA Gel Battery Warranty 18 Months

D. Solar Inverter Warranty 18 Months

E. Solar Controller 18 Months

F.Solar Systems 18 Months

G.Solar Street Light 36 Months
H. Solar Water Pump Warranty 18 Months

 

We have great and various agency services to support your business, include:

  • Products
  1. Free original catalogues, pictures, flyers, datasheets, vedios, certificates.
  2. Shop product poster and roll up banner design by professional desinger.
  3. Agency VIP price.
  • Market
  1. Help analyze local competitors.
  2. Recommend new products every year to help lead the market.
  3. Enjoy free samples.
  4. Recommend local customers to buy from agency directly.
  • After-sale
  1. Provide 0.5% free accessories.
  2. Provide free installation drawings.
  3. Product maintenance videos.

Payment

T/T/Western Union/Alipay/Wechat/Cash.

Yes, we do. We accept pay 30% Deposit first, and pay the rest 70% balance before delivery.

Shipping

EXW/FOB/CIF/CFR/DDU/DDP.

Yes, we could help you ship by express, sea transportation and air transportation according to your requirements.

Yes. We could offer door to door shipment service, so you could simply pick up goods in your local.

Yes sure. We have been loading solar battery containers every week and arrange shipping for customers many times, have rich experience on it, could offer these certificates immediately and easily.

Yes sure, we have many cooperated professional shipping companies, could ship to all over the world, please kindly share me your destination port, let me check shipping cost for you.

product

Get In Touch with Us

    *We respect your confidentiality and all information are protected.