Electroluminescence/Photoluminescence

PanEL-Spot

Laboratory system for Electroluminescence imaging of solar cells & panels

Take the next step in PV quality control with the PanEL-Spot system

PanEL Includes

Full-Frame sensor camera for wide field of view and high resolution, modified for sensitivity to IR wavelengths
Camera memory card, power and data cables
Programmable EL power supply, controlled by system software
Power cables from power supply to PV module – ring terminal to MC4
Black metal enclosure for power supply, includes drawer for storage and large surface area for PV cell or small module imaging
RGB LED light for illuminating working surface of metal enclosure
Multi-position camera mounting arm
Collapsable stand with adjustable leg height on which to place metal enclosure
IMPEL software on a Windows laptop
No-charge software upgrades and usage assistance for two years
Wireless barcode scanner
Training includes manual and videos, plus a no-charge online training session

Specifications

Camera:

Resolution: 24.3 MP
Lens: 35 mm
Filters: 1000 nm long pass

Power Supply:

Input Voltage Range:100-120V AC 60 Hz or 220 240V AC 50 Hz
Output: Up to 15A, 60V DC
Custom high-voltage power supplies available
MC4 Cables: 5m or desired length

Laptop Computer:

Processor: AMD Ryzen 5 8645HS
Storage: 512 GB
Screen Size: 16 in.
Power Supply Enclosure:
Dimensions: 51 cm x 57 cm

Collapsable Stand:

Adjustable Height: 10 – 24 in.

Barcode Scanner: 1D & 2D (QR code)

Total System Weight with standard power supply: 27 kg

Image cells on the enclosure surface or panels at a distance

BrightSpot integrates hardware components (specialized camera, EL power supply) with its IMPEL software for device control as well as image capture and processing. Recipes make it easy to replicate camera and power supply parameters as well as image contrast enhancement and cropping.

Components

Full Frame Camera for IR wavelengths

Imaging Surface with Black metal enclosure

Standard or Higher Voltage PowerSupply

Laptop with
IMPEL Software

Work Lamp

Height Adjustable Collapsable Stand

High Resolution EL Images

A sensitive, high resolution camera, quality lenses and filters, autofocus software, and flexible post processing software enable the capture of top-quality EL images

Need a Custom Solution?

Whether you’re testing next-gen tandem cells, working in a space-rated clean room, or need custom optics for your line, we can help. BrightSpot has built custom EL, PL, and UVF systems for some of the most demanding PV applications on Earth—and in orbit.

Contact us and discuss your needs with one of our experts.

Defects Seen in EL Imaging

EL can reveal a wide range of defects.

Hail
Damage

Inactive Cracked Segments

Drag Marks From Handling

Busbar/Wire
Defect

Use EL Video to Tell Your Story

All our cameras are also capable of capturing high-resolution video. Make convincing electroluminescence movies to aid product development and to market the superiority of your company’s products vs the competition.

“

BrightSpot was greatly helpful in designing and implementing custom stress tests to demonstrate the imperviousness of our marine solar panels to cell cracking, and their PanEL-Spot system works beautifully. In the coming months, we plan to implement their EL camera system into our production line.

– Simon Angus, Founder & CEO.

Download Product Brochure

Download the product brochure to get all the info and specs

IMPEL Software

Control

IMPEL is the unified control platform for BrightSpot imaging systems, enabling seamless coordination of camera, light sources, and power supply. From a single interface, users can adjust exposure settings, trigger PL or EL sequences, and automate capture workflows across multiple system components.

Enhancement

Built-in image processing tools help users sharpen contrast, highlight defects, and visualize subtle variations in cell or panel performance. With support for custom filters and multispectral imaging, IMPEL ensures every captured frame delivers actionable insights, whether in R&D or field diagnostics.

Report

IMPEL simplifies documentation by generating detailed reports with embedded images, metadata, and measurement context. Export results for internal QA, client acceptance, or long-term traceability – standardized and ready to share.

BrightSpot’s proprietary IMPEL software for EL power supply control, image acquisition, and image processing

Publications

Here you’ll find white papers, case studies, and expert commentary designed to provide practical takeaways for professionals and decision-makers

Customized Defect Imaging Solutions for Perovskite and Tandem Cell/Panel Architectures

BrightSpot Automation serves the entire Perovskite PV value chain with a suite of metrology tools implemented from R&D to product development to manufacturing to field testing. Our systems help identify defects, improve quality, reduce investment risk, and extend the performance of PV technology throughout its lifecycle. BrightSpot supplies customized Photoluminescence…

UV Fluorescence Imaging Of Defects And Bill Of Materials Variations In Bifacial Solar Panels

EUPVSEC – Bilbao, Spain – Sep 22, 2025

Ultraviolet Fluorescence Imaging for Photovoltaic Module Metrology: Best Practices and Survey of Features Observed in Fielded Modules

IEEE Journal of Photovoltaics ( Volume: 15, Issue: 3, May 2025)

Low-Cost Daytime Electroluminescence Imaging

NREL PV Reliability Workshop – Lakewood, CO USA – Mar 6, 2025

UV Fluorescence Imaging for Solar Panel Product Development and Durability Testing

NREL PV Reliability Workshop – Lakewood, CO USA – Feb 28, 2024

Unveiling the Unseen: Harnessing UV Fluorescence for Comprehensive Rooftop PV System Assessment and Successful Insurance Claims Process