to the United States 
We offer UV LED modules at six wavelengths from 385nm to 420nm, all using LUXEON Z LEDs on compact Saber bases. The right wavelength depends on your application — curing and fluorescence inspection each need different parts of the UV spectrum. This guide covers what each wavelength does and which modules to use.
UV Wavelengths Available
| Wavelength | Products | Output (Quad, 500mA) | Primary Applications |
|---|---|---|---|
| 385nm | 15 modules | 900–1,900 mW | Fluorescence inspection, UV curing of thin coatings, forensic analysis |
| 395nm | 6 modules | 2,500–2,700 mW | General-purpose UV curing, fluorescence detection, counterfeit detection |
| 400nm | 6 modules | 1,900–2,100 mW | UV curing, photocatalysis, insect attraction |
| 405nm | 9 modules | 2,500–2,700 mW | 3D printer resin curing (SLA/DLP), PCB exposure, dental curing |
| 415nm | 9 modules | 2,500–2,900 mW | Highest output. Teeth whitening, phototherapy, curing of specialty adhesives |
| 420nm | 6 modules | 2,500–2,700 mW | Border of UV/violet visible. Dental curing, some photopolymer applications |
Total: 51 UV modules across these wavelengths.
How to Choose a Wavelength
UV curing (adhesives, coatings, resins)
The photoinitiator in your curing material determines the wavelength. Check the material’s technical data sheet for the peak absorption wavelength.
- Thin coatings and inks: Often 385nm or 395nm
- 3D printer resins (SLA/DLP): Most are formulated for 405nm
- Dental composites: Typically 405nm or 415nm
- General adhesives: Usually 395nm — the most common UV curing wavelength
If the datasheet specifies a range (e.g., “380–400nm”), choose the wavelength closest to the center of that range.
Fluorescence and inspection
UV light causes certain materials to fluoresce (glow). Shorter wavelengths excite more materials but produce less visible light contamination.
- Forensic / mineral / document inspection: 385nm — minimal visible light output, strong UV excitation
- Non-destructive testing (NDT) / penetrant inspection: 385nm per most ASTM standards
- General fluorescence detection: 395nm — good balance of excitation and output power
- Counterfeit detection (currency, IDs): 385nm or 395nm
Other applications
- Insect attraction (bug traps): 400nm — near the peak sensitivity of most flying insects
- Photocatalysis (air/water purification): 385nm or 395nm — depends on catalyst (typically TiO2)
- Phototherapy: 415nm — used in dermatological applications
Form Factors Available
All UV modules use LUXEON Z LEDs. Available in two form factors:
| Form Factor | LEDs | Size | Output Range |
|---|---|---|---|
| Z 10mm Square | 1 | 10mm × 10mm | 425–725 mW @ 500mA |
| Z 20mm Quad (Saber Z5) | 4 (series) | 20mm × 20mm | 900–2,900 mW @ 500mA |
The Quad produces roughly 4× the output of the single Z module at the same drive current. For applications needing maximum UV intensity, use the Quad.
No Rebel-based UV modules are available. All UV LEDs in our catalog use the LUXEON Z platform.
Safety
UV LEDs at 385–420nm emit radiation that is not visible to the human eye (or barely visible at the violet end). Direct or reflected UV exposure can damage eyes and skin.
- Always use UV-blocking eye protection when operating UV LED modules
- Do not look directly at an energized UV LED
- Limit skin exposure, especially at shorter wavelengths (385nm)
