Testing & Quality — Photometric Lab & QC Process | Yakeen Lighting 
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Photometry Lab.
Tested. Measured. Verified.

Every fixture we ship has been through our in-house photometric and electrical testing lab. Not sampling — every unit. This is what we test, what equipment we use, and what you get in the documentation package.

8 Test Stations
100% Final Inspection
24h Burn-in Per Unit
5yr Warranty
Our Lab

Equipment we test with.

Eight dedicated test stations for photometric, electrical, thermal, and mechanical verification. Run by our in-house engineering team — not an outside QC agency.

🔵

Integrating Sphere

2.0 m · Spectroradiometer

Total luminous flux, efficacy, CCT, CRI, and color consistency measurement across the full production range.

  • Range: 0.1 — 50,000 lm
  • Spectral range: 380 — 780 nm
  • Accuracy: ± 3% (flux)
  • IEC-compliant calibration standard
📐

Goniophotometer

Type C · 2 m radius

Beam angle, intensity distribution, UGR, and IES file generation. Used for every new fixture and modified optic.

  • C-angle: 0 — 360°
  • Gamma angle: -90 — +90°
  • Step resolution: 1° / 5° selectable
  • Output: IES LM-63 (.ies)
🌡️

Thermal Test Chamber

-20°C — +85°C

High-temperature operating life testing, cold start verification, and thermal cycling for exterior-rated fixtures.

  • Temperature range: -20 to +85°C
  • Humidity: 20 — 98% RH
  • Ramp rate: 3°C / min
  • Interior volume: 240 L
⚡

Electrical Test Bench

Programmable AC Source

Input voltage variation, power factor, THD, inrush current, and dimming protocol compatibility testing.

  • Voltage: 0 — 300 V AC
  • Frequency: 45 — 65 Hz
  • Power accuracy: ± 0.5%
  • DALI-2 / 0-10V / TRIAC test rig
💧

IP Test Station

IP54 — IP67

Dust ingress and water jet testing per IEC 60529. Used for prototype verification and batch audit testing.

  • Dust chamber: IP5X / IP6X
  • Water jet: IPX5 / IPX6
  • Immersion: IPX7 (1m, 30 min)
  • Verification: post-test insulation resistance
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Burn-in Racks

200-unit capacity

Every fixture runs for 24 hours at rated voltage before packaging. Early failures caught before they leave the facility.

  • 200 units simultaneous capacity
  • 100% of production — no AQL sampling
  • Monitored: current, temperature, on/off cycling
  • Fault log per serial number
Quality Process

Five checkpoints. Zero shortcuts.

We don't rely on final inspection alone. Quality is checked at five stages through the production process, with documented sign-off at each step.

01 / INCOMING

Material Inspection

Every batch of LEDs, drivers, and housing components is verified against the BOM before it enters production.

LED binning Driver specs Material cert
02 / IN-PROCESS

Assembly QC

First-article approval at the start of each run. Line checks every 2 hours for torque, seal, and alignment.

First article Torque check Seal integrity
03 / PHOTOMETRIC

Light & Color

Integrating sphere verification of flux, CCT, CRI, and efficacy. Sampled at AQL 1.0 per production batch.

Flux ± 5% CCT ± 2 step CRI ≥ spec
04 / BURN-IN

24-Hour Run Test

100% of units run continuously at rated voltage for 24 hours. Current and temperature monitored. Any failure = full line review.

100% tested 24 hours Current log
05 / FINAL

Outgoing Inspection

Final electrical safety test, visual inspection, packaging verification, and documentation pack check before shipping.

Hi-pot test Grounding Label & doc
Standards

What we test to.

We test to established industry standards and methodologies. Some are third-party certified; others are in-house verifications following published methods. We label them clearly — no stretching the truth.

Honesty principle: "Third-party certified" means a certification body has tested and issued a certificate. "Tested to X standard" means we run the test ourselves in our lab using that methodology. The difference matters — and we want you to know exactly which is which.

IN-HOUSE TESTED

LM-79 Photometric Measurement

Luminous flux, efficacy, CCT, CRI, and chromaticity measured in our integrating sphere following LM-79 methodology. Not a substitute for third-party LM-79 certification — it's our internal verification that each batch performs as specified.

IN-HOUSE TESTED

IES LM-63 Photometric Files

IES files generated from goniophotometer measurements following the LM-63 standard format. Files include full intensity distribution and are compatible with DIALux, Relux, and AGi32 lighting design software.

IN-HOUSE TESTED

IEC 60598 Performance Verification

Electrical safety and performance parameters checked in-house following IEC 60598 test methods. Formal safety certification (CE, SASO, etc.) is issued by accredited third-party laboratories.

IN-HOUSE TESTED

LM-80 / TM-21 Lifetime Projection

LED source lumen maintenance data from our component suppliers, calculated per TM-21 methodology. We verify operating temperature in our thermal chamber to confirm the rated L70 life applies under actual fixture conditions.

CERTIFIED

CE — Low Voltage & EMC

CE marking with LVD (EN 60598) and EMC (EN 55015) test reports from EU-notified bodies. Valid for all EU/EEA markets and widely accepted in the Middle East.

CERTIFIED

SASO 2.0 & G-Mark

SASO 2.0 product registration (PCoC) and G-Mark GCC conformity certification for all standard product lines. Issued through SASO-accredited certification bodies. Valid for Saudi Arabia and all GCC markets.

CERTIFIED

RoHS & REACH

All products comply with EU RoHS 2 (restriction of hazardous substances) and REACH (chemical registration) requirements. Full substance declaration available on request.

CERTIFIED

IECEE CB Scheme

CB test certificate accepted by 54 member countries for national certification. Simplifies entry into new markets — one set of test results, multiple national marks.

Sample Report

What you actually get.

Below is the format and data fields you'll find in a typical photometric test report. Actual reports are product-specific and generated per order.

Photometric Test Report — Sample

REP-DL-240-001 (Sample)
YK-DL-240-COB
2024-11-15
LM-79 (in-house)
2.0m Integrating Sphere
2,480lm
103lm/W
24.1W
3,020K
94.2CRI Ra
36° (FWHM)
0.96PF
8.2%
1.8step
This is a sample report format for illustration purposes. Actual reports contain product-specific data and are generated per order. In-house test reports follow LM-79 methodology but are not third-party certified. For third-party certified reports, refer to our SASO, CE, and CB documentation.
Documentation

What ships with every order.

Documentation isn't an afterthought — it's part of the product. Every shipment includes a complete package tailored to your project and destination.

📊

IES Photometric Files

LM-63 format .ies files for every product model. Ready for DIALux, Relux, and AGi32. Available before order confirmation.

.IES
📋

Product Datasheets

Full technical specification sheets including dimensions, electrical data, photometric values, and material/finish specifications.

.PDF
📑

Batch Test Report

Photometric and electrical test results from the actual production batch. Verified against spec tolerances before shipment.

.PDF
✅

Certificate of Conformity

Declaration that products conform to ordered specifications and applicable standards. Signed by our quality manager.

.PDF
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National Certifications

SASO PCoC, ESMA ECAS, G-Mark, CE, CB, RoHS — whichever applies to your destination. Shipment certificates (SCoC, etc.) included.

.PDF
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Installation & Wiring

Installation guides, wiring diagrams, DALI-2 commissioning instructions, and maintenance recommendations per product line.

.PDF
📦

Packing List & BOM

Itemized packing list with serial numbers, quantities per carton, weights, and dimensions. Full BOM available on request.

.PDF / .XLSX
📜

Warranty Document

5-year limited warranty covering LED engine, driver, housing, and finish. Terms, conditions, and claim procedure clearly stated.

.PDF
🔬

Material & Finish Specs

Aluminum alloy specification, anodizing/powder coat details, corrosion resistance data, and color consistency documentation.

.PDF

Need documentation for your project?

We'll send the full documentation package for the products you're specifying — before you place an order. Photometrics, datasheets, certificates — all of it.

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