China Solar Factory - Koop Solar Panel, zonne-gadgets, zonne-lamp, zonne-oplader, zonne-energie producten van Chinese fabriek direct!

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  • Services

    Sample Availability & Policy

    Prices are calculated upon receipt of the customer’s detailed requirements. Usually quotation could be provided within 24 hours.

    Samples are sent by express, usually via customer’s appointed carrier such as FEDEX, UPS, DHL etc.

    Production begins as soon as the customer agrees to our terms, upon sample approval.


    Quality Assurance:

    Our process includes many quality procedures, in-line and final production.

    At our workterm, we are committed to quality requirements of the best standard. We do not sacrifice on quality. We make sure quality is adhered to throughout our operation from sampling to final shipment. We take extra efforts in ensuring the suppliers comply with strict quality control. Quality Assurance is an inherent part of our services and we ensure that our customers do not face any problem at any stage


    Quality Control and Inspection Procedures:

    We normally follow AQL Level 4.0 inspection method, but on special case we follow any inspection method our customers require. Our quality control and inspection procedure includes the following functions:

    1. Our Quality Assurance department checks all the fabric/Accessories to ensure that quality/color etc conforms to the order / style.

    2. Our Quality Assurance and merchandising team goes to factory location to evaluate pre-production (size set) sample, patterns, etc to approve for trial production.

    3. Quality Assurance team evaluates trial production and then finally approves for bulk production

    4. As bulk production starts, our Quality Assurance team goes for inline inspection. This inline inspection during production is performed on daily basis.

    5. At the middle stage of production if (standard of quality) result is acceptable / good then we go for pre-final inspection. Here we check the case pack, carton quality, shipping mark, assortment, presentation etc.

    6. If the pre-final result is acceptable then we go for final inspection & if it passes, we approve for the final shipment.

    To ensure quality of the highest standard, we inspect at every stage of the production process. The following Quality & Inspection steps are being currently employed in sourcing and manufacturing:


    7. Accessories Inspection

    8. Raw Material  Inspection

    9. Measurement Spec checking

    10. Accessories Inspection testing

    11. Accessories Color Matching checking

    12. Assembly checking

    13. Function Testing

    14. Lab dip testing

    15. Finished product inspection

    About Our R & D Department

    Our R&D is undertaken by the Technology Research Department, which consists of the Sample Exhibition Center (SEC), the CAD-Technology Center (CADTC) and the Sample-Working Center (SWC). The SEC displays thousands of samples covering most of our product range. The CADTC is responsible for plate/pattern making, style designing, calculating predicted consumption, graphic processing and photo production. The SWC mainly functions as a sample design and production center.

    Product Design

    1.Prototype development

    2.Research on size

    3.Refining manufacturing process

    4.Rapid materials estimation


    Production Design

    1.Processing skill

    2.Mass production method

    3.Equipment for mass production

    4.Aided equipment for mass production

    5.Production flow

    6.Production arrangement


    Artwork Design:

    - Artwork for embroidery/printing to be provided by customer.

    - Mould charge is not required for new design after order placed.

    - Our professional graphic designer can turn your draft for embroidery/printing into beautiful artwork at low cost.


    We offer embroidery and printing service as below:


    ﹡Discharge ﹡Emboss ﹡Flock ﹡Glitter (Silver & Gold) ﹡Hi-Density ﹡Jelly

    ﹡ Laser ﹡ Plastisol ﹡Puff ﹡Silkscreen ﹡Transfer ﹡Water Base


    Advantages of technical research and development

    To provide multi-product combination, and enhance the competitiveness on creating specified products.



    Normally your quotation is received within one working days (please note any time difference between countries).


    Production Lead-time:

    After order confirmation, please allow 15-20 days for print-proof/approval sample. Once confirmed, allow 25-45 days production. Lead times vary depending on seasons, availability of raw materials and components.



    Our merchandising team is committed to complete customer satisfaction. Our merchandising department consists of highly qualified team of merchandisers whose prime aim is to provide full satisfaction to our customer starting from the fabric procurement stage to shipment and reporting the status of the order to the buyers regularly


    The services our merchandising team provides to our clients are:

    . Systematic follow-up on each stage of production and execution of order on time.

    . Monitoring new trends in fabric, fashion and design.

    . Locating new reliable sources to meet the requirements of the customer with regard to fashion and design.

    . Introducing new samples to buyers to enable them to expand their business.

    . Educate the customer about the characteristics of variety of fabrics, dyes, dyeing and printing process, and their positive and negative points and caution the buyers about the pitfalls involved.

    . Liaison between the customer and our factories and follow-up.

    . Guiding the supplier in preparation of the range to meet the customer's requirements with regard to fashion and design and negotiation.


    In addition, we keep our buyers updated at every stage of their orders. Due to this, we prepare daily production report from the manufacturers unit. This report keeps the buyer updated about their order at every stage of the production process.


    Guarantees/Warranties/Terms and Conditions

    We take full responsibility for any inconformity with buyers' requests in color, quantity, packing and size.

    We guarantee the protection of customers’ designs, workmanship, patents and copyrights.

    Customized design service is available, executed by professional designers from packaging design majors. Our own designs could be exclusively provided.

    Terms could be FOB, CFR, CIF, CIP, DDU, DDP etc.


    Logistics Operation Support

    Our staff in the Foreign Trade Department are all experienced in the exporting industry.

    Being a supply chain service provider, we have the knowledge and expertise to provide total logistic and transportation solutions to our customers. Our qualified personnel work in close association with leading freight forwarders, air and shipping lines at various locations. In addition, we can provide you specific value added services by pre advising all shipments on a regular basis with tentative arrival dates.

    - 1 set Form A or Certificate of Origin is provided for each order (for shipment quantity > 1,000pcs & > US$1,500.-)

    - The cost of each extra set of Form A is US$70.- and extra set of Certificate of Origin is US$20.-

    - Export license (Quota) is required for the States. Its cost is depends on the market fluctuation.


    Customers visit our facility



    Logistics operation



    • What information does China Sol need to offer you the best customized solar lamps?

      Generally, China Solar Factory needs those questions answered.

      1) The sunshine hours per day or the exact city the street lights will be installed
      2) How many continuous rainy days in the raining season there? (It matters because we have to make sure the light can still work in 3 or 4 raining days with little sunshine)
      3) The brightness of LED lamp(50Watt, for example)
      4) Working time of solar light every day(10 hours, for example)
      5) The height of the poles, or the width of road
      6) It is best to offer the pictures on the locations where the solar lamps going to be installed.

    • What is an LED driver?

      An LED driver is a self-contained power supply that has outputs matched to the electrical characteristics of your LED or array of LEDs. There are currently no industry standards, so understanding the electrical characteristics of your LED or array is critical in selecting or designing a driver circuit. Drivers should be current-regulated (deliver a consistent current over a range of load voltages). Drivers may also offer dimming by means of pulse width modulation (PWM) circuits. Drivers may have more than one channel for separate control of different LEDs or arrays.

    • What is a sun hour?

      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.

    • How does the light know when to turn on and turn off?

      China Solar Factory's solar controller uses a photocell and/or timer to control when the light will turn on, when the sun goes down, and to turn off when the sun  comes up.  The photocell detects when the sun comes down and when the sun comes up again. China Solar Factory can make the lamp last anywhere from 8-14 hours, and this varies on the customer's needs.

      The solar controller utilizes an internal timer that is pre-set for a specific number of hours to determine when to switch the light off. If the solar controller is set to leave the light on until dawn, it determines when the sun rise (and when to switch the light off) by means of voltage readings from the solar panel array.

    • What happens if there are cloudy days?

      Electrical energy is stored in the battery each day, and some of that energy is used to operate the light at night. Generally, we design your system so that the battery will operate the light for five nights without charging. This means that, even after a series of cloudy days, there will be plenty energy in the battery to power the light each night. Also, the solar panel will continue to charge the battery (although at a reduced rate) even when it is cloudy.

    • What is the typical maintenance schedule for a solar lighting system?

      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.

    • Do I have to charge the batteries?

      Batteries are shipped 85% charged. The batteries will be at 100% charged within two weeks of proper operation.