Alonefire SV41 365nm UV flashlight 15W 3LED with ZWB2 filter

The AloneFire SV41 is a high-quality 365nm UV flashlight, built for gemstone inspection, mineral hunting, and fluorescence detection. Equipped with 3x5W UV LED and a larger 37mm ZWB2 filter, it produces a strong, clean UV beam with minimal visible light, making it more powerful than standard compact UV models.

Its durable metal alloy body and enhanced reflector provide a wider light radius and reliable performance for both professional and hobby use. Powered by a single 18650 rechargeable battery (not included), it’s compact, efficient, and easy to carry.

✨ Features:

• Wavelength: 365nm (true UV)
• LED: 3x5W UV LED for strong output
• Filter: ZWB2 37mm – blocks visible light for clean fluorescence
• Material: Durable metal alloy body
• Power: 1x 18650 battery (not included)
• Improved reflector for a brighter, wider UV beam

✅ Perfect for:

• Gemstone and crystal fluorescence
• Mineral and fossil hunting
• Checking banknotes, stamps, documents, and neon dyes
• General UV applications in hobbies and professional work

⚠️ Safety Notice:
Avoid direct exposure to eyes or skin. Use UV-protective goggles when working with ultraviolet light.

Not sure which UV flashlight is right for you? We’ve made a full comparison of different models with photos and performance tests — click here to check it out before choosing.