Authenticity Over Exaggeration · Real Guzhen Manufacturing

Guangdong Linksow Technology Co., Ltd.

Established in 2014 in the undisputed "World Lighting Capital" — Guzhen Town, Zhongshan City, Guangdong Province. We operate specialized production lines, an in-house photometric laboratory, and an audited supplier network.

5-Stage QC Protocol Optical Testing Lab
Our Origin & Location

At the Epicenter of Global Lighting: Guzhen Town

Guzhen Town accounts for over 70% of China's lighting production and exports to more than 130 countries. Being physically located here gives LinkSow an insurmountable supply chain advantage:

  • ✔ 30-Minute Component Radius: Heatsink casting, driver SMT, optical lenses, and powder coating are sourced within minutes.
  • ✔ Rapid Sample Prototyping: Customized tooling samples ready within 5-7 working days.
  • ✔ Verified Factory Audits: On-site engineer inspections before signing orders or transferring buyer deposits.
LinkSow engineering and procurement team collaboration
Optical integrating sphere testing
Zero-Defect Commitment

The 5-Stage LinkSow QC Protocol

We don't rely on random supplier promises. Every batch passes through our standardized five-gate inspection workflow with verifiable test reports.

IQC Raw Material Verification GATE 1

IQC Raw Material Verification

LED chip voltage binning, driver capacitor temperature ratings (Rubycon/Aishi 105°C), and ADC12 alloy thickness checks.

✓ Zero Substandard Intake
IPQC Assembly & SMT Check GATE 2

IPQC Assembly & SMT Check

SMT solder paste thickness inspection, automatic optical inspection (AOI), thermal paste uniformity, and torque calibration.

✓ Automated AOI First-Article
24 - 48h Full Burn-in Aging GATE 3 (MANDATORY)

24 - 48h Full Burn-in Aging

100% of finished luminaires undergo 24 to 48 hours continuous high-voltage impulse switching on aging racks before packing.

✓ 100% Elimination of Infant Defects
Optical & Electrical Testing GATE 4

Optical & Electrical Testing

2-Meter integrating sphere validation for exact lumens, CRI, and CCT. Hi-pot 3750V insulation resistance and ground continuity.

✓ Lab Report Included in Cargo
Pre-Shipment Drop & Loading GATE 5

Pre-Shipment Drop & Loading

ISTA-1A carton corner/edge drop test, pallet strapping, container floor moisture check, and computerized 3D packing plan.

✓ Seaworthy Palletizing
Authentic Verification

In-House Testing Laboratory Equipment

We maintain permanent in-house diagnostic equipment in Guzhen to generate verifiable photometric and reliability submittal packages for overseas engineers and authorities:

🔬 2.0m Integrating Sphere Spectroradiometer:
Measures total flux (lm), spectral power distribution, CCT (K), CRI (Ra & R9), SDCM color coordinates, and power factor (PF).
📐 Dark Room Goniophotometer:
Generates verified IES and LDT photometric distribution curve files for Dialux / Relux architectural lighting calculations.
🌊 IP66 Jet Spray & Dust Ingress Chamber:
Continuous 100 kPa high-pressure water nozzle jetting to guarantee ingress protection in monsoon and marine environments.
⚡ 10kV Lightning Surge Generator:
Tests outdoor street light drivers against high-voltage electrical grid spikes and lightning strikes.
CB (IEC 60598-1/2) CE LVD & EMC RoHS 2.0 Compliant ISO 9001:2015
Dark room goniophotometer Darkroom Goniophotometer
Integrating sphere testing 2.0m Integrating Sphere
SMT & Torque Testing SMT & Electrical Station
Aging Test Rack Burn-in Aging Rack

Live Zoom / WhatsApp Factory Walkthrough

Our engineers can test your target luminaire live inside our integrating sphere on camera.

Book Live Tour →