Our high-performance LED spot light sources are Primelite’s ready-to-use solution for demanding applications.
A high degree of flexibility and customization in spectral composition is achieved by our modular concept with up to 5 separate emitters based on UV-LED and VIS-LED technology. Extremely stable output and extended lifetime characterize this spot light system. For efficient delivery of the radiation at the point of application, we recommend and use high-transmission liquid light guides (see Optical Subcomponents).
Our ALE/1 systems are developed and manufactured in Munich – Quality Made in Germany.

Highlights
- Up to 30 Watts of optical output
- Future-proof mercury-free light source
- LED process stability and TCO benefits
- Customized spectral composition (UV, VIS, NIR)
- Closed-loop controlled output
- Easy to integrate into new and existing setups
- No external cooling required
- Quality Made in Germany
Multispectral Modularity for Highest Intensities
The ALE/1 combines radiation power and spectral characteristics of a mercury discharge lamp with the TCO and process benefits of LED technology. Following a platform concept approach, the ALE/1 is capable of combining up to 5 high-performance LEDs in the optical path. This allows for significantly elevated radiation power levels across a broad output spectrum.
Choose from a wide range of options to design your spectral composition of ALE/1 systems: UV-LED Modules in the Near UV (365, 385, 405, 435 nm), VIS-LED (470, 520, 620, 660, 690 nm) and NIR-LED emitters (730, 770, 810, 850, 970 nm) are available.
The emitters are available as “Regular” LED-Modules in combination with 5.0 or 6.5 mm light guides or “Plus” LED-Modules for elevated performance combined with 6.5 or 8.0 mm light guides.
Examples of Potential Combinations and Related Performance Levels
This ALE/1-setup provides highest radiation intensity focusing on a single peak wavelength. If your application is optimized for narrow bandwidth radiation and does not profit from a broad spectrum, the ALE/1.1 is your preferred choice as a high output UV-LED spot curing system.

Emitters | 1 UV-LED (365, 385, 405, or 435 nm)1 | ||
Radiation output2 in mW | ALE/1 | ALE/1+ | ALE/1+ |
Light guide3 | Ø5.0 mm | Ø6.5 mm AR | Ø8.0 mm |
365 nm | 7,000 | 10,000 | 10,500 |
385 nm | 10,000 | 14,000 | 14,000 |
405 nm | 10,000 | 14,000 | 14,000 |
435 nm | 7,000 | 10,000 | 10,500 |
1 CWL of emitters: 367.5±2.5 nm, 387.5±2.5 nm, 402.5±2.5 nm, or 435.0±2.5 nm; 2 Full spectrum of each emitter measured at end of light guide (length 1.5 m), deviation of ±10% possible; 3 Ø6.5 mm light guides with antireflective coating (“AR”) |
There are several 2-LED-combinations available, depending on your application needs. Potential setups including 2 high-performance UV-LEDs are: 365/385 nm, 385/405 nm, and 365/405 nm. These spectra are particularly popular in industrial UV-LED spot curing applications.

Emitters | 2 UV-LEDs (365 and 385 nm)1 | ||
Radiation output2 in mW | ALE/1 | ALE/1+ | ALE/1+ |
Light guide3 | Ø5.0 mm | Ø6.5 mm AR | Ø8.0 mm |
365 nm | 4,500 | 6,500 | 6,500 |
385 nm | 8,000 | 12,500 | 12,500 |
Total | 12,500 | 19,000 | 19,000 |
1 CWL of emitters: 367.5±2.5 nm and 387.5±2.5 nm; 2 Full spectrum of each emitter measured at end of light guide (length 1.5 m), deviation of ±10% possible; 3 Ø6.5 mm light guides with antireflective coating (“AR”) |
Two 3 LED-setups in the UV spectrum are available: Covering the spectrum from 365 nm to 405 nm with high UV radiation power, the ALE/1.3 (365/385/405 nm) is particularly suited for curing applications. This configuration with 3 high-performance UV-LEDs provides you with full flexibility to combine and select the wavelengths available in order to profit from a broad spectrum exposure.

Emitters | 3 UV-LEDs (365, 385, and 405 nm)1 | ||
Radiation output2 in mW | ALE/1 | ALE/1+ | ALE/1+ |
Light guide3 | Ø5.0 mm | Ø6.5 mm AR | Ø8.0 mm |
365 nm | 4,500 | 6,500 | 6,500 |
385 nm | 6,000 | 9,000 | 9,000 |
405 nm | 4,500 | 8,000 | 8,000 |
Total | 15,000 | 23,500 | 23,500 |
1 CWL of emitters: 367.5±2.5 nm, 387.5±2.5 nm, and 402.5±2.5 nm; 2 Full spectrum of each emitter measured at end of light guide (length 1.5 m), deviation of ±10% possible; 3 Ø6.5 mm light guides with antireflective coating (“AR”) |
Furthermore, there is the option to combine and select from wavelengths of the i-, h-, and g-line spectrum (365/405/435 nm) in semiconductor lithography applications. Whether you want to switch between bandwidths or want to use a broader spectrum the ALE/1.3 is able to provide you with highest radiation output up to 30 W (all emitters combined).

Emitters | 3 UV-LEDs (365, 405, and 435 nm)1 | ||
Radiation output2 in mW | ALE/1 | ALE/1+ | ALE/1+ |
Light guide3 | Ø5.0 mm | Ø6.5 mm AR | Ø8.0 mm |
365 nm | 6,500 | 10,000 | 10,000 |
405 nm | 6,500 | 10,500 | 10,500 |
435 nm | 6,000 | 9,500 | 9,500 |
Total | 19,000 | 30,000 | 30,000 |
1 CWL of emitters: 367.5±2.5 nm, 402.5±2.5 nm, and 435.0±2.5 nm; 2 Full spectrum of each emitter measured at end of light guide (length 1.5 m), deviation of ±10% possible; 3 Ø6.5 mm light guides with antireflective coating (“AR”) |
The ALE/1.4, combining 4 high power LEDs in its optical path, covers the entire spectrum from 365 to 435 nm with high radiation power. For photoresists that profit from a broad wavelength spectrum and/or are sensitive also to 385 nm, the ALE/1.4 will be your choice.

Emitters | 4 UV-LEDs (365, 385, 405, and 435 nm)1 | ||
Radiation output2 in mW | ALE/1 | ALE/1+ | ALE/1+ |
Light guide3 | Ø5.0 mm | Ø6.5 mm AR | Ø8.0 mm |
365 nm | 4,500 | 6,500 | 6,500 |
385 nm | 6,000 | 9,000 | 9,000 |
405 nm | 4,500 | 7,500 | 7,500 |
435 nm | 4,000 | 7,000 | 7,000 |
Total | 19,000 | 30,000 | 30,000 |
1 CWL of emitters: 367.5±2.5 nm, 387.5±2.5 nm, 402.5±2.5 nm, and 435.0±2.5 nm 2 Full spectrum of each emitter measured at end of light guide (length 1.5 m), deviation of ±10% possible; 3 Ø6.5 mm light guides with antireflective coating (“AR”) |

System Properties and Specifications
Included emitters | Up to 5 LEDs ranging from 365 nm to 970 nm |
Total radiation output1 | Up to 30 W |
Output intensity1 | Up to 95,000 mW/cm2 |
Numerical aperture | 0.60 / 70° (2α) |
Control configurations |
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Communication interfaces |
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Thermal management | Internal liquid cooling |
Dimensions (W H D) | 28 cm X 23 cm X 40 cm (11.0″ X 9.1″ X 15.7″) |
Weight | 15 kg (33 lbs) |
Power supply input | 110-240 VAC / 50-60 Hz / 1,000 W |
Light Guide Options |
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1 Full spectrum measured at end of light guide (standard length 1.5 m), deviation of ±10% possible |
Additional Features and Benefits
- Initial setup of the unit and internal emitters is a matter of minutes.
- High resolution intensity adjustment and feedback controlled power output guarantee unprecedented precision and stability of your exposure process.
- The ALE/1 is extremely fast, characterized by output rise times of <1 millisecond.
- Extensive possibilities to set up each LED-Module and general exposure parameters help you to manage your application processes and enable new applications.
- Long LED service life and single minute exchange of LEDs, which can be performed by the end user himself, dramatically reduce equipment downtime.
- Primelite LED Light Engines are designed as fiber coupled light sources to achieve maximum flexibility for system integration.
- High transmission light guides efficiently transport the generated radiation to the point of application – no need for complex optics, less trouble finding the right place for the LED light source to fit into your manufacturing equipment.
- Upgrading valuable existing equipment and designing new exposure units based on Primelite’s latest LED technology is straightforward.
- The small footprint of the internally cooled light engine, application of high transmission light guides and standard communication interfaces make system integration a very manageable task.

- ALE/1’s future-proof data interfaces as well as its network oriented electronic component and software setup allow for a seamless integration in your (automated) production environment.
- Besides intuitive user interface via the touch display, there is a variety of standard interfaces supported by the ALE/1 (incl. AUX for external switching devices, USB for ALE/remote Software and open API, Discrete PLC Interface, and Fieldbus)
