We perform Non-Destructive Testing (NDT), such as ultrasonic testing, to ensure all critical load-bearing welds are free of cracks or porosity.

Standard configurations take 15-20 days. Large orders requiring structural calculations and custom production typically take 30-45 days.

It depends on the environment. High-lumen LED street lights are recommended for main roads; Solar street lights are ideal for remote or sun-rich areas; Smart poles are best for commercial zones or smart city planning.

Yes. We provide specialized batteries for extreme climates, including heating films for cold regions and heat-resistant lithium cells for tropical environments.

To give you a straight answer: Yes, the upfront cost of a Solar LED Street Light is higher than a traditional AC LED light. However, if you look at the "Total Cost of Ownership," solar often wins by a landslide.

We use reinforced cartons and wooden pallets to prevent damage during long-distance transit. For large projects, we recommend FCL (Full Container Load) sea freight to minimize shipping costs.

Our solar street lights carry CE, RoHS, IP66, IK10, and ISO 9001 certifications, meeting the standards for government and commercial projects worldwide.

Yes. We can customize power output, battery capacity, logo branding, and even industrial design based on your project requirements.

In dusty or low-rainfall areas, we recommend cleaning every 6 months. Heavy dust accumulation can reduce charging efficiency by over 20%.

This is usually due to battery aging, panels being shaded causing insufficient charge, or incorrect controller settings. We can assist you with remote troubleshooting.

No. It is a self-contained power system that requires no trenching, wiring, or grid connection, significantly reducing installation and labor costs.

The optimal angle depends on your local latitude. Generally, panels should face the equator (South in the Northern Hemisphere) at an angle equal to your latitude plus $5^{\circ}$ to $15^{\circ}$.

We primarily use LiFePO4 (Lithium Iron Phosphate) batteries. Compared to Gel or Lead-acid batteries, LiFePO4 offers a much longer cycle life (over 2000 cycles) and superior high-temperature resistance.

Monocrystalline panels offer higher efficiency (above 20%) and perform better in low light, making them ideal for all-in-one designs. Polycrystalline panels are more budget-friendly for large-scale projects.