| Manufacturing Capacity | Production facilities and available assembly capacity | Dedicated metal fabrication, powder-coating, electronics assembly, and final-testing areas; capacity should be demonstrated against the required annual project volume. | Factory profile, production-line photographs or video, equipment list, capacity statement, and recent production schedule. | Helps confirm that the supplier can support both initial delivery and repeat orders without excessive delays. | 0–10 points |
| Production Quality Control | Inspection coverage from incoming materials to final shipment | Documented incoming inspection, in-process inspection, final inspection, sampling plan, and traceability for major components. | Quality-control procedure, inspection checklist, sample inspection report, nonconformity procedure, and batch traceability records. | Reduces the risk of inconsistent pole dimensions, wiring faults, battery defects, and incomplete deliveries. | 0–10 points |
| Pole Material and Structure | Material grade, wall thickness, corrosion protection, and structural design | Material and dimensions must match the approved drawings and local wind-load requirements. Common options include galvanized steel, aluminum, or other corrosion-resistant structures. | Material certificate, approved drawings, structural calculations, galvanizing or coating report, and dimensional inspection report. | Solar poles must withstand wind, rain, vibration, foundation loads, and long-term outdoor exposure. | 0–10 points |
| Lighting Performance | Luminous output, efficacy, beam distribution, color temperature, and operating profile | Require photometric data and an application-based design rather than evaluating only LED wattage. Confirm that the design meets the target illuminance or luminance level. | IES or equivalent photometric file, LM-79-style test data where available, lighting simulation, LED data sheet, and approved lighting layout. | Higher wattage does not automatically provide better road or area lighting; distribution and operating conditions are equally important. | 0–10 points |
| Solar Module | Module type, rated power, efficiency, and environmental durability | Use a documented power calculation based on local solar resource, panel orientation, load, autonomy requirement, and seasonal conditions. Monocrystalline modules are widely used for compact solar lighting systems. | Module data sheet, electrical test report, serial or batch information, warranty terms, and system-sizing calculation. | Insufficient photovoltaic capacity is a common cause of poor performance during cloudy or winter periods. | 0–10 points |
| Battery System | Battery chemistry, usable capacity, cycle life, operating temperature, and protection | Require a battery-management or charge-control strategy, overcharge and over-discharge protection, and a capacity calculation showing the required nights of autonomy. LiFePO₄ batteries are commonly selected for outdoor solar lighting because of their thermal stability and cycle-life characteristics. | Battery data sheet, capacity test, safety documentation, BMS or controller specification, autonomy calculation, and replacement procedure. | The battery is often the component most directly associated with nighttime runtime and lifecycle cost. | 0–10 points |
| Autonomy and Energy Design | Runtime under normal and low-sun conditions | Evaluate the design using local solar irradiation, seasonal conditions, dimming schedule, battery usable capacity, and the specified number of backup nights. Do not accept runtime claims without calculation assumptions. | Energy-balance calculation, solar-resource assumptions, dimming schedule, battery sizing sheet, and project-specific performance simulation. | Provides a more realistic comparison than a simple advertised “hours of lighting” figure. | 0–10 points |
| Ingress and Impact Protection | Protection of luminaire, controller, battery enclosure, and junction box | IP65 or higher is a practical minimum for exposed outdoor enclosures; IP66 provides stronger protection against water jets. Consider IK08 or higher where mechanical impact is a concern. | IP and IK test reports from a competent laboratory, enclosure drawings, gasket specifications, and installation instructions. | Appropriate protection helps prevent water ingress, dust contamination, corrosion, and accidental damage. | 0–10 points |
| Electrical and Photobiological Safety | Applicable safety, EMC, and photobiological-risk assessment | Request conformity evidence relevant to the destination market. IEC 60598-1 is a key general luminaire safety reference; IEC 62471 addresses photobiological safety; EMC requirements should also be considered. | Test reports, declarations of conformity, circuit diagrams, insulation or dielectric test records, grounding details, and EMC documentation. | Confirms that the electrical design has been assessed for shock, fire, electromagnetic compatibility, and optical safety risks. | 0–10 points |
| Management Certifications | Quality, environmental, and occupational-health management systems | ISO 9001 certification is a useful quality-management indicator. ISO 14001 and ISO 45001 may be relevant for environmental and occupational-health management. Certificates should be current and issued for the actual manufacturing site. | Current certificates, certification scope, certificate number, issuing body, validity date, and verification record. | Management-system certification supports process consistency but does not replace product-specific testing. | 0–10 points |
| Product Compliance | Compliance with destination-country requirements | Product documentation must match the target country, voltage system, installation rules, and applicable electrical, lighting, and construction regulations. | Country-specific conformity documents, labels, user manuals, installation instructions, risk assessment, and customs documentation. | A product can be technically functional yet unsuitable for import, installation, or public-sector approval in a particular market. | 0–10 points |
| Testing and Reliability | Environmental, thermal, charging, cycling, and endurance testing | Prioritize project-specific testing covering charging and discharging, temperature exposure, water ingress, corrosion, LED thermal behavior, and repeated operating cycles. | Test plan, laboratory reports, accelerated-aging records, temperature test data, battery-cycle results, and corrective-action records. | Reliability testing identifies failure modes that may not be visible during a short demonstration. | 0–10 points |
| Warranty | Coverage period, exclusions, response time, and replacement responsibility | Compare the warranty separately for the LED luminaire, solar module, battery, controller, and pole structure. A clear written warranty with defined remedies is more valuable than an unsupported long-term claim. | Signed warranty document, component-specific terms, spare-parts policy, claim procedure, response-time commitment, and examples of after-sales records. | Component-specific terms reveal whether the supplier accepts responsibility for the parts most likely to require replacement. | 0–10 points |
| After-Sales Service | Technical support, spare parts, troubleshooting, and field assistance | Require installation manuals, wiring diagrams, controller settings, troubleshooting guidance, and a defined escalation process. Confirm the availability of replacement batteries, controllers, LED modules, and hardware. | Service-level agreement, spare-parts list, training materials, remote-support process, and service contact details. | Good support can significantly reduce downtime and maintenance costs after installation. | 0–10 points |
| Project Experience | Experience with similar climate, site conditions, and deployment scale | Prior projects should be comparable in climate, wind conditions, lighting class, installation quantity, autonomy requirement, and maintenance environment. | Redacted project references, installation photographs, commissioning reports, performance records, and customer references where permitted. | Relevant experience is more useful than a general claim of long operating history. | 0–10 points |
| Commercial and Delivery Capability | Lead time, minimum order quantity, packaging, shipping, and change control | Supplier should provide a written production schedule, agreed inspection points, export packaging specification, spare-parts allowance, and procedures for engineering changes. | Quotation, pro forma invoice, production schedule, packing specification, inspection plan, and change-control terms. | Clear commercial controls reduce delivery risk and prevent unapproved substitutions. | 0–10 points |
| Verification Recommendation | Independent validation before mass production | Use an approved sample, third-party factory audit, pre-shipment inspection, and project-specific functional test before releasing the full order. | Signed technical specification, approved golden sample, audit report, inspection report, and acceptance-test record. | Independent verification converts supplier claims into measurable acceptance criteria. | Pass / Conditional Pass / Fail |