Q
Are you a manufacturer or trading company?
We are a factory. OEM/ODM/Customization is available, and printing your logo is welcomed.
Q
Do you have any MOQ limit for solar light orders?
Low MOQ, 1 pc for sample checking is available. Mixed samples are welcomed.
Q
How does your factory handle quality control?
We have related records to monitor IQC and QC. All lamps undergo a 24-72 hours aging test before packing and delivery.
Q
What is the shipping method?
It could be Ocean Shipping, Airlift, and Express (EMS, UPS, DHL, TNT, FEDEX, etc.).
Q
Why is the product warranty 2 years? Do I need to change the lamp after 2 years?
The industry standard warranty is 2 years. This does not mean the lamp's lifespan is only 2 years; it means we provide related after-sales service freely during these 2 years. The lamps can still work well after 2 years normally.
Q
What is the main difference between monocrystalline silicon and polycrystalline solar panels?
The cost and conversion efficiency are different. Both polycrystalline silicon technology and monocrystalline silicon technology are very mature, but the conversion efficiency of monocrystalline silicon is higher, the volume is small, and the cost is high, while the volume of polycrystalline silicon is large, the conversion efficiency is lower than monocrystalline silicon, but the cost is more economical.
DERT Lighting
