Question 1

Where is your company located and where are products manufactured?

Accepted Answer

Our company is registered in the United States. All products are manufactured in tier-1 factory in China.

Question 2

Are your products certified?

Accepted Answer

Yes, We hold relevant international certifications for different markets, including UL, CSA,TUV ,IEC, CE for our key products (solar panels, inverters,lithium battery).

Question 3

Do you have any local warehouses or partners in the US/Europe?

Accepted Answer

Yes ,we have US warehouse and EU warehouse.

Question 4

What is the warranty on your products?

Accepted Answer

Solar Panels: 25-30 years linear performance warranty (e.g., 97% output in the first year, ~0.5% annual degradation). Inverters &lithium battery: 5 to 10-year warranty, depending on the model. Full System Warranty: We offer comprehensive support for complete solar systems. Specific warranty terms are provided with each product's datasheet.

Question 5

Are your solar panels monocrystalline or polycrystalline?

Accepted Answer

We primarily specialize in high-efficiency Monocrystalline PERC solar panels, which offer better performance and a sleeker look in both low-light and high-temperature conditions.

Question 6

What is the DoD (Depth of Discharge) of your lithium batteries?

Accepted Answer

Our LiFePO4 batteries typically have a recommended DoD of 90% or higher, allowing you to use almost the full capacity of the battery.

Question 7

What is your lead time?

Accepted Answer

For standard items, the lead time is typically 7-15 days. For larger custom orders or complete systems, it may take 20-30 days. We will always provide a precise lead time confirmation before you place your order.

Question 8

Can I get a sample before placing a bulk order?

Accepted Answer

Yes, we encourage sample orders to verify our quality. Sample products are available. The cost and shipping for the sample will be calculated separately, and the sample fee can often be deducted from your subsequent bulk order.

Question 9

Do you provide technical support after purchase?

Accepted Answer

Yes, we provide comprehensive technical support. This includes installation manuals, wiring diagrams, and access to our technical team via email or video call to assist with setup and troubleshooting.

Product specifications

Sunplus-600W

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