Seeking Reviewers for UltraFire RUV3 365nm UV Flashlight (365nm / ZWB2 / 21700)

Hello BLF,

We are looking for a few community members who are interested in reviewing a new 365nm UV flashlight — the UltraFire RUV3 — and providing objective feedback to the forum.

This model is targeted for true UV applications such as mineral inspection, scorpion hunting, leak detection, currency/ID inspection, and general forensic use. Key points below:

• 365nm true UV output (10W UV LED)
• ZWB2 glass filter (blocks visible spill for cleaner UV)
• Dual output modes: High (10W) / Low (5W)
• 21700 battery platform (5000mAh included)
• Approx. runtime: ~2 hours High / ~4.5 hours Low
• USB rechargeable
• Weight: 143g (without cell)
• Length: 165mm
• IPX4 splash-resistant

Product page:

What we are looking for:
• UV performance testing (with/without ZWB2 filter effect)
• Beam profile / fluorescence comparisons
• Runtime observations
• Build impressions and constructive criticism
• Application testing (minerals, leaks, etc.) if applicable

Who we will select:
We will prioritize members who have:
• Experience with UV flashlights or fluorescence testing
• Prior review history on BLF or comparable platforms
• Ability to provide objective evaluation

If interested, please reply in this thread or send me a PM with:

  • Your UV testing experience (if any)

  • What you would compare it against (if applicable)

  • Country

Thanks in advance — feedback from knowledgeable users helps us improve future models.

UltraFire Team

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