FAQ
Solar Panel Manufacturers in China FAQ Wholesale PV Module Suppliers Guide
How do you ensure the panels aren't damaged during international transit?
We use reinforced export packaging with palletized protection and corner guards. This ensures zero breakage during sea freight, port handling, and inland transit for all international orders.
How many solar panels are in a full container or a single pallet?
Capacity varies by model. For example, a pallet holds 36-37 pcs, and a 40’HQ container fits approx. 594-720 pcs. We will provide a precise loading plan based on your selected model and power rating.
How long does it take from payment to shipment?
For in-stock items, we ship within 7 working days after order confirmation. For bulk orders or non-stock models, lead time depends on factory schedules. We will provide a precise timeline upon your specific inquiry.
What are the different types of solar panels?
The main types include:
Monocrystalline Silicon: High efficiency, best for limited space. Currently, it is the mainstream technology.
Polycrystalline Silicon: Lower cost but slightly less efficient.
What is the difference between on-grid and off-grid solar systems?
On-Grid System: Connected to the public electricity grid; excess energy can be fed back to the grid for credits (net metering).
Off-Grid System: Operates independently using batteries to store excess energy, ideal for remote areas without grid access.
Hybrid System: Combines grid connection with battery storage for backup power.
Can solar panels work on cloudy or rainy days?
Yes, but their power generation will be reduced. Solar panels rely on sunlight, so on cloudy or rainy days, their output might drop to 10%-30% of what they produce on a sunny day.
What is your MOQ and wholesale pricing?
Our MOQ is 1 pallet (approx. 36 pcs). We offer tiered pricing for Pallet and Full Container (FCL) orders. For large projects, FCL is recommended to maximize shipping cost-effectiveness.
What information is needed for a bulk quote?
Please specify the Model/Power, Total Quantity (pcs/MW), and Destination Port. This helps us provide the most competitive price and an accurate shipping timeline for your region.
What are the advantages of your solar panels?
We are a professional solar panel manufacturer, and we also provide you with other tier-1 brand options, such as Longi Solar, JA Solar, Jinko Solar, Canadian Solar, and Trina Solar, with competitive prices and better models at the same time.
Single-glass (monofacial) vs. Dual-glass (bifacial)?
Single-Glass (Monofacial) Panels: Have a glass front and a polymer backsheet. They absorb sunlight only from the front side.
Dual-Glass (Bifacial) Panels: Have glass on both sides and can absorb sunlight from both the front and rear, increasing total power generation.
What is the lifespan of a solar panel?
Most solar panels from leading brands have a lifespan of 25-30 years. Manufacturers typically provide a 10-12 year product warranty and a 25-30 year linear power warranty, ensuring that the panel will still produce around 80% of its original power output after 25 years.
What is the role of an inverter?
The inverter converts the DC electricity generated by solar panels into AC electricity, which can be used in homes or fed into the grid. It also plays a crucial role in system monitoring and protection.
