Unlock the Midwave.

The UltraFire ZV PRO-310nm delivers intense UVB power to reveal unique fluorescence in Calcites and Fluorites that standard UV lights simply miss.

UltraFire® ZV PRO-310nm UV Flashlight

Name: UltraFire® ZV PRO-310nm UV Flashlight
Brand: UltraFire
SKU: 9644
Price: 38.32 USD
Availability: InStock

UVB 310nm | USB Rechargeable | ZWB2 UV Filter
Stop missing the middle spectrum. The UltraFire ZV PRO-310nm bridges the gap for specialized mineral detection and scientific analysis. While standard shortwave and longwave lights miss certain reactions, this rugged, 5W midwave UVB powerhouse delivers a precise 310nm beam with an impressive 80mW radiant flux. Equipped with a dedicated black filter lens to block visible light, it is engineered to perfectly excite specific Calcites (orange-red glow), certain Fluorites, and synthetic or uranium-related minerals. CNC-machined from solid aluminum with a hard-anodized finish, it features convenient USB charging and compatibility with high-capacity 21700 batteries for long field operations. Don't leave your collection incomplete—unlock the midwave glow.

$38.32

$45.99

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3-Year Warranty

Flashlight Operation & Safety Guide

⚠️ CRITICAL SAFETY WARNING ⚠️

Invisible & Dangerous: 310nm UVB light is invisible to the human eye and severely damages living tissue.

Eye & Skin Protection: Always wear UV-blocking safety goggles. Never point the beam at your eyes, skin, other people, or pets.

How to Test: Because the UV beam is invisible through the black filter lens, never look directly into the lens to check if the light is on. Shine it on a piece of white printer paper to see the fluorescent reaction.

Operation & Battery

Battery: Insert 1x 21700 or 18650 lithium-ion battery with the positive (+) end facing the head. (Remove battery to charge).

Power: Click the tail switch for On/Off (Single mode).

Title

What's Included

· UltraFire ZV PRO-310nm UV Flashlight

· Rechargeable 21700 5000mAh 3.7V lithium-ion battery

· Type-C Charging Cable

Are You Leaving the Best Reactions Behind?

If you are only hunting with shortwave (254nm) and longwave (365nm) lights, your collection is incomplete. Certain minerals require the exact midwave frequency to fluoresce properly. Without a dedicated 310nm light, you are literally walking right past rare glowing treasures and missing crucial reactions in scientific analysis.

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STANDARD 365NM UV

ZV PRO-310NM

The Missing Link in Mineral Detection

Bridge the gap in your loadout. This rugged 5W midwave powerhouse delivers a precise 310nm beam with an impressive 80mW radiant flux. It is expertly engineered to perfectly excite specific Calcites (producing an intense orange-red glow), certain Fluorites, and uranium-related or synthetic minerals.

Pure Fluorescence, Zero Glare

Visible white light is the enemy of a good find. Our dedicated black filter lens strictly isolates the 310nm UVB beam and blocks out visible light bleed. You get high-contrast, pure mineral fluorescence without the harsh purple glare of cheap alternatives.

Fast USB-C Direct Charging

Stop hauling bulky external battery chargers into the field. The UltraFire ZV PRO features a built-in USB-C port, allowing you to charge up anywhere—from your truck, a portable power bank, or a wall adapter. Supports high-capacity 21700 batteries (and standard 18650s) for maximum runtime.

Why the ZV PRO -310nm Outperforms the Rest.

Them

Cheap plastic lenses, heavy visible white light bleed, weak output.

UltraFire ZV PRO-254nm

Specialized high-temperature vacuum-plated reflector, a dedicated black filter lens for pure 254nm transmission, and a rugged CNC-machined solid aluminum body with hard anodizing.

What the Pros Are Saying.

"For years, my field kit only consisted of standard 254nm and 365nm lights. Adding the UltraFire ZV PRO-310nm completely changed how I survey. This midwave light pulls intense reactions out of specific calcites and fluorites that simply stay dark under other wavelengths. The build quality is rock-solid, and the dedicated black filter lens ensures the fluorescence is pure and easy to photograph without visible light interference. If you are serious about mineral identification, a reliable 310nm is mandatory equipment."

– Richard Price, Verified Buyer & Mineral Enthusiast

Frequently Asked Questions (FAQ)

Q: Why do I need a 310nm light if I already have shortwave (254nm) and longwave (365nm) flashlights?

A: Standard shortwave and longwave lights leave a "blind spot" in your detection. Certain minerals, such as specific calcites and fluorites, have their peak fluorescent response in the midwave spectrum. Without a 310nm light, you will completely miss these unique color reactions (like intense orange-reds).

Q: How do I test if the flashlight is working since the beam is invisible?

A: Never look directly into the lens! To test the light, turn it on and shine it onto a piece of standard white printer paper in a dark room. The paper contains optical brighteners that will react and fluoresce brightly, confirming the flashlight is functioning perfectly.

Q: How do I know whether I need 254nm, 310nm, or 365nm?

A: Different minerals, gems, and materials react to distinct UV wavelengths:

254nm (Shortwave UVC): Essential for classic fluorescent minerals like Willemite, Calcite (Franklin type), Scheelite, and specific geological field testing.

310nm (Midwave UVB): Highly sought-after for specialized minerals, secondary uranyl minerals, and select rock species that only respond to midwave light.

365nm (Longwave UVA): The industry standard for general mineral viewing (Yooperlites, Sodalite, Fluorite), pet urine detection, amber, currency verification, and resin curing.

Q: Do I need to wear safety glasses with this flashlight?

A: Yes, absolutely. The 310nm UVB light is highly hazardous to your eyes and skin. For your protection, we include a free pair of certified UV-blocking safety goggles with every order. Always wear them during operation and never shine the light on bare skin.

Q: Can I use this for curing UV resin, finding pet urine, or checking counterfeit money?

A: No. Those everyday tasks require a longwave UVA light (typically 365nm or 395nm). This 310nm midwave light is a specialized, professional tool engineered strictly for fluorescent mineral hunting and scientific analysis.

Q: What battery does it use and how do I charge it?

A: The ZV PRO-310nm is highly versatile. It supports a high-capacity 21700 lithium-ion battery for maximum field runtime, and is also compatible with standard 18650 batteries. It features convenient USB direct charging, so you can easily recharge using a power bank, car charger, or wall adapter.

Product Specifications

Light Source: UVB Midwave Ultraviolet
Wavelength: 310nm
Power Output: 5W
Radiant Flux: 80mW
Reflector: High-Temperature Vacuum-Plated Aluminum Alloy
Lens: Dedicated Black Filter Lens
Battery Compatibility: 1x 21700 Lithium-ion OR 1x 18650 (adapter sleeve required)
Charging Method: USB Direct Charge
Operating Voltage: 3.7V - 4.2V
Operating Current: 0.5A
Operation Modes: 1 Mode (Single Output)
Switch Type: Mid-Body Push Button
Material: Solid Aluminum Alloy (CNC Machined)
Color: Black
Weather Resistance: IP54
Length: 5.20 in (132 mm)
Head & Tail Diameter: 1.10 in (28 mm)
Weight (No Battery): 3.25 oz (92 g)
Safety Note: UVB light is harmful to eyes and skin; safety goggles must be worn during use. (We include a free pair with every order).