LED THT EOLD-W4K-014
High Precision White Light Source for Sensing and Industrial Systems – VIS LED EOLD-W4K-014
The EOLD-W4K-014 is a high-performance white visible LED developed for sensing, lighting, and industrial applications. Manufactured by EPIGAP OSA Photonics, this emitter delivers stable and reliable optical output for demanding scientific and industrial environments. Housed in a rugged TO-46 metal package with an integrated lens, the LED provides excellent durability, thermal stability, and long operational life. Operating within the visible spectrum, it ensures bright and uniform illumination for applications requiring accurate and consistent white light performance. United Spectrum Instruments is the authorised distributor of EPIGAP OSA Photonics products in India.
Designed for advanced optical and industrial systems, the EOLD-W4K-014 is widely used in optical detection, inspection systems, indicators, and automation equipment. Its focused beam profile and high optical efficiency improve visibility and enhance detection accuracy in laboratory and industrial environments. The integrated lens design enables efficient light concentration, making it suitable for compact optical systems and specialised instrumentation requiring dependable white light illumination. Its stable visible light output ensures reliable operation in continuous-use sensing and inspection applications.
The compact and durable construction of the EOLD-W4K-014 allows seamless integration into laboratory instruments, industrial automation systems, and advanced sensing equipment. Its TO-46 metal housing supports efficient heat dissipation, helping maintain stable optical performance during prolonged operation. Combining focused white illumination, rugged packaging, and dependable long-term performance, the EOLD-W4K-014 provides an excellent solution for applications requiring precise, stable, and high-quality visible light sources.
Understanding LED THT EOLD-W4K-014
The EOLD-W4K-014 operates in the visible white spectrum, delivering balanced broadband illumination suitable for sensing and lighting applications. It provides approximately 12 mW optical output at a typical operating current of 20 mA, ensuring efficient and stable performance.
The LED features a narrow viewing angle of ~10°, enabled by its lens-based TO-46 design, allowing precise and directional illumination.
Its hermetic metal package ensures excellent thermal stability and environmental protection, making it suitable for continuous operation in demanding industrial and scientific environments.
Technical Specifications
| Parameter | Specification |
| Product | EOLD-W4K-014 |
| Type | Visible LED (White) |
| Spectrum | White (VIS) |
| Optical Output Power | ~12 mW |
| Forward Current | ~20 mA |
| Viewing Angle | ~10° |
| Package | TO-46 Metal Can (Lens) |
| Mounting Type | Through-hole |
| LED Type | THT (Through-Hole Technology) |
| Application Areas | Sensing, Indicators, Lighting |
| Compliance | RoHS compliant |
Key Features and Advantages
White Light Output for Versatile Applications
The LED emits broadband white light, making it suitable for a wide range of applications including sensing, inspection, and general illumination.
Focused Beam for Precision Illumination
With a ~10° viewing angle, the integrated lens delivers highly directional light, enabling accurate targeting in sensing and optical detection systems.
Stable Optical Output for Reliable Performance
Delivering approximately 12 mW output, the LED ensures consistent and repeatable illumination, critical for industrial and analytical applications.
Robust TO-46 Hermetic Package
The metal package provides excellent mechanical strength, thermal stability, and environmental protection, ensuring long-term durability in harsh conditions.
Efficient Thermal Management
TO-can design supports effective heat dissipation, enabling stable operation during continuous use.
Low Power Consumption
Operating at a typical current of 20 mA, the LED provides energy-efficient performance while maintaining strong light output.
Industrial-Grade Reliability
Designed for demanding environments, the LED offers long operational life and consistent performance, reducing downtime and maintenance costs.
Easy Integration into Systems
The through-hole configuration allows seamless integration into PCBs and optical assemblies, supporting both prototyping and high-volume production.
Applications Across Industries
Optical Sensing & Detection Systems
The white light output is widely used in sensing applications for detecting materials, colours, and surface properties with high precision.
Industrial Inspection & Quality Control
White illumination helps identify defects, contamination, and inconsistencies in manufacturing processes, improving quality assurance.
Indicator & Signalling Systems
Ideal for status indicators and signalling applications in industrial automation and control systems.
Lighting & Illumination Systems
Used in compact lighting systems where stable and focused white light is required.
Biomedical & Analytical Applications
Supports optical instrumentation, imaging systems, and laboratory setups requiring consistent visible light sources.
Automation & Machine Vision Systems
Used in machine vision and inspection systems where uniform illumination enhances detection accuracy.
Research & Scientific Applications
Widely used in photonics research and experimental setups requiring stable and controlled visible light sources.
Why Choose United Spectrum Instruments?
United Spectrum Instruments is a trusted supplier of advanced photonics components in India. We provide expert consultation, product selection guidance, and integration support for LEDs like EOLD-W4K-014. With strong technical expertise and responsive after-sales service, we ensure reliable sourcing and long-term performance. Our commitment to quality and customer success enables industries to implement efficient optical sensing, lighting, and analytical solutions tailored to their needs.
- Authorised Indian distributor for EPIGAP OSA Photonics THT LED solutions
- Access to premium German-engineered Through-Hole Technology (THT) LEDs
- Wide wavelength coverage from UV-C to SWIR applications
- Strong expertise in UV, VIS, IR, and SWIR THT LED technologies
- Technical guidance for sensing, illumination, and industrial integration
FAQs
What type of LED is EOLD-W4K-014?
It is a white visible LED designed for sensing, lighting, and industrial applications.
What is the optical output power?
It provides approximately 12 mW optical output.
What is the viewing angle?
It has a narrow beam angle of around 10° for focused illumination.
What applications is it best suited for?
It is used in sensing, indicators, lighting, and industrial inspection systems.
Is it suitable for industrial environments?
Yes, it is designed for reliable operation in demanding industrial and laboratory conditions.
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FAQs
What type of LED is EOLD-W4K-014?
It is a white visible LED designed for sensing, lighting, and industrial applications.
What is the optical output power?
It provides approximately 12 mW optical output.
What is the viewing angle?
It has a narrow beam angle of around 10° for focused illumination.
What applications is it best suited for?
It is used in sensing, indicators, lighting, and industrial inspection systems.
Is it suitable for industrial environments?
Yes, it is designed for reliable operation in demanding industrial and laboratory conditions.

