Quality Assurance

Quality You Can Trace. Batch by Batch.

Every batch of pre-owned LED panels we sell carries a unique traceable code — so you always know exactly what you’re getting, where it came from, and how it was tested.

One Code. Full Transparency

Instead of tracking individual cabinets, we assign a unique batch code to every group of panels received together. This code links to the complete history of that batch — from origin to final inspection.

Batch Code Format

Each code encodes the brand, intake date, and batch sequence. When you receive a quote or shipment from Stellux, you’ll always see this code — and you can request the full traceability report for any batch.

STX-B-20260825-03

STX

Brand

B

Batch

20260825

Intake Date

03

Sequence

6 Steps from Intake to Delivery

Every batch goes through a rigorous, documented process. No shortcuts, no exceptions.

Receiving & Intake

Incoming panels are verified against purchase orders — brand, model, pixel pitch, quantity, and physical condition. Every cabinet is photographed and logged into the batch record.

Receiving & Intake

Incoming panels are verified against purchase orders — brand, model, pixel pitch, quantity, and physical condition. Every cabinet is photographed and logged into the batch record.

Receiving & Intake

Incoming panels are verified against purchase orders — brand, model, pixel pitch, quantity, and physical condition. Every cabinet is photographed and logged into the batch record.

Repair & Refurbishment

Every panel with functional issues is fully repaired using same-batch replacement parts. Dead LEDs, driver ICs, power supplies, and mask lenses are replaced as needed.

Burn-in Testing

Indoor panels: minimum 72 hours. Outdoor panels: minimum 96 hours. Continuous operation at full brightness with periodic inspections to catch early failures.

Final QC & Shipping

Pre-shipment visual re-inspection, quick power-on check, accessory verification, and professional packing. Each shipment includes a full test report.

Transparent Grading. No Surprises

We grade based on visual condition and service age. Every panel — regardless of grade — must pass full functional testing and burn-in before shipping.

A-Level

No visible wear, paint intact, no deformation

Service Age : ≤ 2 years

Premium rental, brand events

Price vs. New : 55-70%

B-Level

Light use marks, no structural issues

Service Age : 2-4 years

Standard rental, exhibitions

Price vs. New : 35-50%

C-Level

Visible use marks, minor touch-ups may be present

Service Age : 4-6 years

Budget projects, fixed installations

Price vs. New : 20-35%

D-Level

Visible deformation or damage — repaired and re-graded

Service Age : ≥ 6 years

After full refurbishment only

Price vs. New : Re-assessed

E-Level

Severe damage / water intrusion / burn damage

Service Age : End of life

Not sold — parts harvested for repair stock

Price vs. New : N/A

The Numbers Behind the Guarantee

These are the standards every panel must meet before it leaves our facility.

Dead LED Rate
0 %
Color Uniformity
ΔE≤ 0
Indoor Burn-in
0 h+
Outdoor Burn-in
0 h+
Housing Tolerance
0 mm
Signal Chain Test
0 %

Packed for the Road

We offer three packaging options depending on your use case. Every shipment includes protective padding, secure fastening, and clear labeling.

Flight Case

Rental & Touring

OEM or equivalent hard flight cases with custom EVA foam inserts. Panels are fixed and immobilized. Ideal for rental houses and touring companies.

Carton + Pearl Cotton

Fixed Installation

Double-layer corrugated cartons with pearl cotton separators between each layer. Outer wooden frame or pallet for added protection during transit.

Neatly stacked on standard pallets, wrapped in 3+ layers of stretch film with corner protectors. Cost-effective for large-volume orders.

What's in the Box

Every order ships with complete documentation. No missing cables, no guesswork.

Quality certificate with grade

Simplified test report (1 page)

Packing list (model / qty / accessories)

Power cables & signal cables

Locking pins & handles

After-sales contact card

We Stand Behind Every Batch

Ready to See
What's in Stock?

Tell us what you need — model, pixel pitch, quantity, grade — and we’ll send you a quote with full batch traceability.

Product Enquiry