Product Overview
5mm Ultraviolet LED 410–415nm Water Clear (Unused NOS)
This 5mm ultraviolet LED emits near-UV light in the 410–415 nm wavelength range and features a water-clear lens for focused optical output.
Positioned at the boundary between visible violet and true ultraviolet, this wavelength offers a unique balance of UV interaction and human-visible light.
Product Condition
This LED is unused, new old stock. It has not been installed or electrically operated and has been kept in original packaging or controlled storage.
Product Overview
Operating in the near-ultraviolet (UVA-adjacent) spectrum, this LED produces a deep violet glow while still exciting many UV-reactive and fluorescent materials. Unlike shorter-wavelength UV sources that are invisible to the eye, the 410–415 nm range allows users to clearly see where light is being applied.
This makes the device especially useful for alignment-sensitive work, demonstrations, diagnostics, and experimentation where visual feedback matters as much as UV response. Its standard 5mm (T-1 3/4) through-hole package integrates easily into breadboards, prototyping boards, and conventional PCB layouts.
Wavelength Explainer: Why 410–415 nm Matters
The 410–415 nm wavelength occupies a practical crossover zone between visible violet light and ultraviolet (UVA). It can stimulate fluorescence in many dyes, inks, plastics, and resins while remaining clearly visible to the human eye.
Rather than maximizing raw ultraviolet intensity, this wavelength emphasizes control, precision, and visibility. It is especially well suited for educational, hobbyist, and bench-level technical work where understanding and observing optical behavior is part of the task.
Electrical Use Note
As with all LEDs, this device should be driven within rated limits using a current-limiting resistor or constant-current driver to ensure stable output and long service life.
Key Features
- Near-ultraviolet LED with 410–415 nm emission wavelength
- Visible violet output with UV-reactive capability
- 5mm (T-1 3/4) round package with water-clear encapsulation
- Forward voltage of 3.4–3.6 VDC at rated current
- Nominal forward current rating of 20 mA
- Through-hole leads for breadboard and PCB mounting
- Well suited for alignment, inspection, and demonstration use
Applications
- Fluorescence excitation for inks, plastics, and markers
- Educational optoelectronics and physics demonstrations
- UV-curable adhesive and resin testing at low intensity
- Optical sensor and camera response experiments
- Indicator and diagnostic lighting where UV presence must be visible
- Hobbyist prototyping and laboratory bench projects
Frequently Asked Questions
Is this suitable for scorpion detection?
It can produce fluorescence at close range, but wavelengths below 400 nm are more effective for long-distance scorpion detection.
Is this a deep-UV LED?
No. This LED operates at the edge of UVA and visible violet light, not in the deep-UV range.
Why choose 410–415 nm instead of 365 nm or 395 nm?
This wavelength is chosen when visibility, alignment, and controlled interaction matter more than maximum ultraviolet intensity. It is easier to observe directly than deeper UV wavelengths.
Does this LED require a resistor?
Yes. A current-limiting resistor or constant-current driver is required for safe operation.
Can this be powered from a 5 V supply?
Yes, when paired with a properly calculated series resistor.
Is manufacturer or optical bin data provided?
No specific manufacturer or binning information is available. Optical output should be validated for precision-critical applications.
Some components stand out not by brute force, but by balance. This LED’s wavelength was chosen to be seen, understood, and used deliberately—ready for whatever experiment, lesson, or build you have in mind.
