Obtaining an LED display splicing screen test report (for bidding) is typically to meet the product quality, performance, and safety compliance requirements specified in the tender documents. The overall process is not complicated, but it must be done according to the tender parameters; otherwise, the bid may be rejected. Below, I will explain the practical process clearly.
I. Review the Tender Documents (The Most Crucial Step)
The testing report used for bidding is not something that will suffice; you must meticulously check each requirement of the tender, paying particular attention to:
Is third-party testing required?
Common wording:
"A testing report issued by a nationally accredited third-party testing institution must be provided."
"A testing report stamped by CMA/CNAS."
Testing Item Requirements
Common requirements include:
Optical performance (brightness, contrast, chromaticity)
Electrical safety (insulation, voltage, grounding)
EMC electromagnetic compatibility
Environmental adaptability (high and low temperatures, humidity and heat)
Seam performance (seams, bright and dark lines)
Lifespan or aging test
Report validity period
Usually required within 1–3 years
Some explicitly state "within the last year"
Tested model
Must be consistent with or cover the model of the product being tendered.
Cannot use "similar model" to deceive.
Recommendation: Directly provide the tender parameters to the testing institution to confirm whether they can cover the product.
II. Select a Testing Institution (Must be legitimate)
Generally, choose the following types:
✅ Commonly Used Authoritative Testing Institutions
China Ceprei Laboratory
National Electronic Product Quality Supervision and Inspection Center
Provincial Metrology/Quality Inspection Institutes
Third-Party Testing Institutions (e.g., TÜV, SGS, CTI, etc.)
❗ Must possess
CMA (China Metrology Accreditation)
If required by the tender, CNAS is also required
⚠️ Without a CMA report, government projects are basically invalid
III. Preparing Testing Documents
Testing institutions generally require:
1️⃣ Product Information
Product Model Specifications
Product Instruction Manual
Circuit Schematic Diagram (required for some projects)
Business License
2️⃣ Samples
Full screen or module + control system
Splicing screens typically:
At least 2–4 cabinets
Including splicing structure
3️⃣ List of Test Items
Listed according to the tender requirements
The testing institution can prepare this for you.
IV. Testing Process (Standard Steps)
Submit Application
Confirm Test Items & Quotation
Sample Submission
Laboratory Testing
Issuance of Test Report
CMA/CNAS Stamp
⏱️ Timeframe Reference
General Optical + Safety: 7–15 working days
Including EMC/Environmental Testing: 15–30 working days
Expedited: 3–7 days (higher cost)
V. Test Fee Reference (Estimated Only)
Basic Optical Performance Testing Fee: 3,000–8,000
Electrical Safety Testing Fee: 3,000–6,000
EMC Testing Fee: 8,000–15,000
Environmental Reliability Testing Fee: 5,000–10,000
Common Testing Fee for Complete Tender: 10,000–30,000
Specific fees depend on the number of testing items.
VI. How to Use the Test Report in the Tender Documents
Copy/Scanned Copy (stamped with the bidding unit's official seal)
Report Content Must:
Consistent Model
Testing Items Cover the Tender Parameters
Do Not Omit:
CMA/CNAS Page
Homepage + Test Results Page
VII. Common Pitfalls for Bid Rejection (Avoid These)
❌ Inconsistent Report Models
❌ Incomplete Testing Items
❌ Expired Reports
❌ Non-Third-Party/No CMA Certification
❌ Only Module Testing Provided, Not "Splicing Screen"
VIII. Practical Suggestions
Prepare Reports in Advance (Don't Wait for the Winning Bid)
General Coverage Reports Can Be Prepared for Frequently Bidding Models
New Projects: Have the Testing Agency Pre-Approve the Bidding Parameters