Equipment · GK-8000

GK-8000 Daytime EL Inspection System

A UAV-borne daytime electroluminescence system integrating SWIR imaging, programmable power, air-ground sync and smart interpretation software — for acceptance, O&M and defect localization.

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UAV-borne daytime EL inspection unit (SWIR payload)

Full product line

A complete product matrix for PV module EL inspection — from handheld testers to UAV inspection, test power supplies and AI interpretation software.

LSF-U

Portable EL Testers

Handheld electroluminescence testers that image hidden cracks, broken gridlines and cold solder joints inside PV modules — from incoming inspection to plant O&M.

4 models →
LSF-US

String EL Testers

String-level EL testers that energize and image whole strings or arrays at once, dramatically raising on-site throughput.

2 models →
LSF-A

UAV Inspection Systems

PV inspection drones carrying EL and thermal payloads for efficient daytime aerial scanning and defect localization across utility-scale plants.

3 models →
LSF-I

IV / Power Testers

Portable IV-curve and power testers covering 1000V–2000V / 30A–40A, for module power calibration and utility-scale IV monitoring.

5 models →
LSF-P

Test Power Supplies

Dedicated EL test mobile power packs and programmable string supplies with constant-current/voltage, reverse-current protection and soft ramping.

4 models →
LSF-S

AI Software

EL-image AI recognition and diagnosis cloud platform: batch auto-labeling, report generation, plant modeling and defect-clearing management.

1 models →
LSF-E

Field Electrical & Environmental

On-site electrical and environmental instruments — power-quality/power analyzers and solar radiation meters — for plant commissioning and O&M.

2 models →

Key specifications

Flagship: GK-8000 Daytime EL Inspection System

Inspection time 24/7 (day / night)
Detectable defects Hidden cracks, micro-cracks, cold solder, broken gridlines, PID, poor sintering, breakage, etc.
Throughput ~1000–1500 modules/day (≤5s per module)
Supported modules Mono, poly, bifacial, TOPCon, HJT, thin-film, etc.
Ambient light range 0–1200 W/m²
Imaging sensor InGaAs SWIR, 400–1700nm response, global shutter
Resolution options 0.33MP / 1.3MP / 5MP
String control power Output 0–2250V, constant current / voltage / power, MC4 / MC3 compatible
UAV platform Enterprise multi-rotor, RTK cm-level positioning, terrain following, IP-rated protection, for large-area continuous work
Output formats JPG / PNG / BMP + parameter logs
Standard alignment Workflow aligned with IEC TS 60904-13:2018

The above are publicly disclosed parameters; actual configuration is subject to the formal technical agreement and quotation. Some performance depends on on-site string layout, weather and working conditions.

Equipment FAQ

Which defects can it detect?

Hidden cracks, micro-cracks, cold solder, broken gridlines, PID, poor sintering, breakage and other internal/structural defects.

Which module types are supported?

Mono, poly, bifacial, TOPCon, HJT, thin-film and other mainstream modules.

What standard does the EL inspection follow?

EL image acquisition, image-quality evaluation and defect interpretation follow IEC TS 60904-13:2018; operating-condition EL is a field method Longsafe developed for in-service modules, and its specific test conditions differ from conventional forward-bias EL.

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Tell us your inspection scenario and project scale; we will match the model and send a configuration list.

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Need configuration advice?

Tell us your project scale and inspection needs; we will propose a configuration and quote.

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