In this review
TANK007 K9-A5
The first longwave comparison in our guide because the recorded listing identifies 365nm output and USB power. An included UV-pass filter was not established by that listing.
Choose it for
Comparing an explicitly named 365nm flashlight and its USB power setup.
Look elsewhere if
An explicitly documented filter, verified brightness result or shortwave output is essential.
What changes the buying decision
Our interpretation of the documented specifications, not a hands-on test.
The recommendation stops at what the listing establishes
The recorded listing identifies 365nm and USB power. Those facts support a shortlist for that setup; they do not establish battery endurance, brightness or an included UV-pass filter. USB power alone should not be read as a promise about the current charging accessories or runtime.
Use the filter requirement as a decision gate
If a documented filter is essential, we would compare the uvBeast rather than assume a dark lens in a product photo proves filter performance. If it is not essential, the K9-A5 remains a candidate to check against its current listing. We have no measured basis for declaring either model the brightness or value winner.
Key specifications
- Wavelength
- 365nm
- Power
- USB-powered, per recorded listing
- UV-pass filter
- Not established by the retrieved listing
- Brightness
- Not measured by this site
Specifications reflect the evidence recorded in our buying guide. Confirm the exact model and current package before checkout.
Strengths & limitations
What stands out
- Wavelength is explicitly stated
- Power setup is identified in the listing
Know the trade-offs
- Included filter remains unconfirmed
- No independent brightness result in this guide
Alternatives worth comparing
How this review was put together
This is a research-based product review drawn from our existing buying guide. We have not performed a hands-on test or assigned a laboratory score. Manufacturer claims are identified as such, and unresolved details remain unresolved.
Read the full comparison and contextSources & References
- UV Lights: wavelengths and filter behavior — Fluorescent Mineral Society
Before you buy
- Verify that the listing and selected variant both identify K9-A5 and 365nm.
- Check the exact power setup and included accessories.
- Resolve the filter question with written package details if it affects your choice.
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Founder and editor, The Rockhounding Hub
Marvin runs this site and is still learning rockhounding. He builds each guide from maker specs, safety rules, and public sources.