How to choose a professional and reliable outdoor lighting supplier？

I. Qualifications and industry certification
Brand and industry status
Give priority to brands that rank high in the industry list (such as Philips, Qinshang, and Unilumin), which usually have mature technical standards and market recognition.
Check whether the company participates in the formulation of industry standards, whether it has patented technology or national-level testing and certification (such as IP protection level, electrical safety test report, etc.).

Production strength and scale

Investigate the scale and production capacity of the supplier's factory, such as the area of ​​self-built factory (such as more than 15,000 square meters) and the scope of case coverage (such as more than 8,600 national service cases) to reflect the stability of the company.
Confirm whether it is the source factory to avoid price increases by middlemen and reduce procurement costs.

II. Product quality and technical parameters
Core performance indicators

Durability: The lamps must be resistant to high and low temperatures, dust and water (IP65 or above is recommended), and suitable for complex outdoor environments.
Light efficiency and energy saving: Choose high-efficiency LED light sources, which save energy and reduce long-term operation and maintenance costs.
Safety certification: Pass leakage protection, lightning protection and other tests to ensure safe use.

Customization capability

If the project requires non-standard lamps (such as building floodlights, stadium-specific lights), give priority to manufacturers that provide customized services, and examine their design experience and case matching.

III. After-sales service and cost control
After-sales guarantee

Confirm the warranty period (such as 3-5 years), fault response time and localized service team to reduce later maintenance costs.
Require installation guidance or supporting solutions (such as ground cage specifications, light pole adaptation suggestions) to reduce construction risks.

Cost transparency

Compare multiple quotations, be wary of low-price traps, and clarify whether the quotation includes taxes, freight and installation costs.

IV. Case reference and field investigation
Engineering case verification

Require suppliers to provide successful cases of similar scenarios (such as bridge lighting, stadium lighting), and conduct field investigations.
Refer to user reviews, pay attention to complaint handling efficiency and actual product life.

Sample testing

Request samples for waterproof, weather resistance, brightness and other tests to ensure that they meet the project requirements.

V. Cost-effectiveness and long-term cooperation
Combining the initial purchase cost and the subsequent maintenance costs, select the most cost-effective solution. For example, although solar lamps have high initial investment, they have significant long-term energy-saving advantages.
Sign a long-term cooperation framework agreement with suppliers to strive for bulk purchase discounts and priority service rights.

Summary: High-quality suppliers must have complete qualifications, efficient production, reliable products, and perfect services. It is recommended to screen through multi-dimensional comparison (such as referring to the 24 brand list), on-site factory inspection, case verification, etc., and customize procurement strategies based on project needs.