This compact 365nm long-wave UV flashlight is the same type of light I use in my studio to photograph fluorescent minerals and glowing stones. The 365nm wavelength is widely considered the optimal long-wave UV range for revealing true mineral fluorescence — far superior to cheaper “blacklight” LEDs that wash everything out with visible purple light.

Despite its small size, the WTC Mini packs a powerful 3-watt 365nm UV LED, making it perfect for viewing fluorescent beads, cabochons, specimens, and interactive shaker bottles at home or on the go.

I offer these as a convenient add-on to my fluorescent listings so you can experience the glow yourself — not just see it in photos.

Product Features

• Handheld long-wave UV flashlight

• True 365nm UV LED for optimal mineral fluorescence

• Lightweight, compact design — easy to carry anywhere

• Built-in rechargeable lithium battery

• Charges via included Micro USB cable

• Can operate from a USB power bank (not included)

• Simple ON/OFF tail-cap switch

Specifications

• UV wavelength: 365nm (long-wave UV)

• LED: 3-watt UV LED

• Battery: Internal rechargeable lithium battery

• Dimensions: 4" (103mm) long × 0.9" (24mm) diameter

• Weight: 3.1 oz (90g)

Charging Information

The flashlight ships partially discharged due to postal regulations. Fully charge before first use using the included Micro USB cable.

• Red indicator = charging

• Indicator off = fully charged

UV Safety

Ultraviolet light should be used responsibly.

• Do not shine into eyes or onto skin

• Avoid prolonged exposure

• UV-blocking safety glasses are recommended

• Keep out of reach of unsupervised children

Warranty

Includes a limited 1-year manufacturer warranty through Way Too Cool covering defects in materials and workmanship (excluding damage from misuse).