In this review
uvBeast V3 365nm
A filtered longwave option for collectors who need the manufacturer's stated range and accept the documented weight. The range and runtime are manufacturer claims, not our measurements.
Choose it for
Longwave fluorescence searches across dark tailings or open ground, with spare charged cells available.
Look elsewhere if
You need a small desk light, verified waterproofing, an entire night on one charge, or 254nm shortwave UV.
What changes the buying decision
Our interpretation of the documented specifications, not a hands-on test.
The filter is the clearest reason to shortlist it
Compared with the TANK007 listing recorded in our guide, the useful distinction is explicit filter documentation. We would shortlist the uvBeast when a documented UV-pass filter is a purchase requirement. That is an evidence difference, not proof that the TANK007 has no filter or that the uvBeast is brighter.
Range does not settle the field-use decision
The stated range and runtime come from the manufacturer. We cannot use them to predict how far you will recognise fluorescence from a particular specimen. Compare the documented weight and battery package with the way you intend to carry and power the lamp, and leave waterproofing unresolved unless the current maker documentation supplies an IP rating.
Key specifications
- Wavelength
- 365nm longwave UVA
- Light source
- Three UV LEDs; built-in filter listed by maker
- Claimed range
- 60 ft+ (manufacturer claim)
- Claimed runtime
- Average 2–3 hours (manufacturer claim)
- Listed weight
- 377 g (Amazon listing recorded in the guide)
- Power package
- Two rechargeable 18650 cells; confirm current package
Specifications reflect the evidence recorded in our buying guide. Confirm the exact model and current package before checkout.
Strengths & limitations
What stands out
- Maker documents a built-in filter
- Long-range use case documented by the manufacturer
- Rechargeable battery package listed by the maker
Know the trade-offs
- Not field-tested by this site
- No verified IP rating in the guide's retrieved evidence
- Longwave only: not suitable for a shortwave-only specimen
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
- uvBeast V3 365nm: official specifications and package contents — uvBeast
Before you buy
- Confirm the filtered 365nm variant and current battery/charger package.
- Decide whether the listed weight and replaceable-cell setup fit your trip.
- Do not treat the claimed range or runtime as measurements from this site.
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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.