Question 1

Is this flashlight truly 365nm, and is it good for hunting uranium glass or minerals?**

Accepted Answer

Yes, it emits 365nm wavelength light. It's a fantastic, bright entry-point for new collectors and works well for spotting uranium glass in a dark room. However, experienced rockhounds on forums like Reddit often note that while powerful, its beam isn't as pure or finely focusable as dedicated hobbyist lights (like the Convoy S2+), which can make very faint fluorescence harder to see.

Question 2

How durable is it, and what's the warranty like?**

Accepted Answer

The DARKDAWN is praised for being powerful yet compact, but some users report the build quality is typical for its price point. The USB-C port can be a point of failure if not treated gently. It comes with a standard limited warranty. For heavy, daily use, a more rugged light might be a better investment, but for occasional home and hobby use, most find it holds up well.

Question 3

I need it for pet stains. Does it really work, and is it safe around my dog/cat?**

Accepted Answer

Absolutely. This is one of its most popular and effective uses. The high intensity makes old urine stains glow brightly. **Important Safety Note:** While effective, you should avoid shining any bright UV light directly into your or your pet's eyes. Brief, indirect scanning of surfaces is the recommended and safe method.

Question 4

What's the deal with the adjustable focus? I've seen mixed reviews.**

Accepted Answer

The focus ring adjusts the beam from a flood to a more concentrated spot. Some users love this versatility, while others (particularly on YouTube review channels) feel the "focused" spot isn't as sharp as they'd like for ultra-detailed inspection. Think of it as a useful general-purpose feature rather than a precision tool. For most tasks like stain detection or checking glass, both beam settings are very effective.

Question 5

How long does the battery last, and can I use it while it's charging?**

Accepted Answer

On the highest setting, expect about 45-60 minutes of continuous use. On lower settings, it lasts significantly longer. It features a built-in, USB-C rechargeable battery for convenience. A common tip from users is that the charging indicator light can be subtle—it's best to charge it fully before first use. Note that it is **not** designed for passthrough charging (using it while plugged in).

DARKDAWN UV Flashlight 365nm Black Light，Mini & Powerful USB- C Flashlights LED Rechargeable Woods Lamp， Portable Adjustable Focus Blacklight Flashlights for Uranium Glass, Money, Pet Urine Stains

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