【UPGRADED UV LIGHT SOURCE】Professional ultraviolet flashlight featuring a 4-core 365nm UV LED source instead of a diode lamp, delivering a powerful output with a beam distance exceeding 30 feet in dark conditions. Its high intensity allows effective fluorescence detection without needing to be close to the surface. 【READY TO MEET ALL YOUR NEEDS】A versatile ultraviolet light designed for multiple applications: 1) Household use such as detecting pet stains, checking for bed bugs, or inspecting hotel rooms; 2) Outdoor activities including locating scorpions, insects, minerals, or rocks; 3) Professional tasks like epoxy resin curing, HVAC leak inspection, verifying currency, checking IDs, examining jewelry, and identifying uranium glass. 【365NM UV FLASHLIGHT WITH BLACK FILTER】Features a multi-layer optical filter lens that blocks up to 99% of visible light, ensuring a pure and concentrated UV output. The 365nm wavelength is ideal for achieving optimal fluorescence results. 【USB RECHARGEABLE FLASHLIGHT】Powered by a built-in 3000mAh rechargeable battery, providing 4–6 hours of continuous use. Equipped with USB Type-C charging for convenient power delivery and supports external device charging. No battery replacements needed. (Red light indicates charging, blue light indicates fully charged.) 【POWERFUL ULTRAVIOLET LIGHT】Constructed from high-quality aluminum alloy for enhanced durability and superior heat dissipation, allowing extended operation without overheating. Designed for long-term reliability with robust resistance to wear, offering a significantly longer service life compared to standard UV flashlights.