[High Power & Precision Detection] Equipped with a powerful 3w output this flashlight delivers exceptional brightness for detailed inspections. the 254nm short wave mode excels at examining ink watermarks and detecting fluorescent agents while the 365nm and 395nm modes reveal fluorescent materials with precision. ideal for non-destructive testing and professional use. [Versatile Applications & User-friendly] This multifunctional flashlight is perfect for gemologists jewelers collectors and inspectors. its wide range of applications includes detecting counterfeit items appraising gemstones and inspecting artwork. the intuitive design and powerful features make it a must-have tool for anyone needing precise and reliable detection. [Usb Rechargeable & Long Battery Life] Featuring a built-in 2000mah li battery and type-c charging this flashlight offers up to 3.5 hours of continuous use. the convenient usb rechargeability eliminates the need for batteries making it an eco-friendly and cost-effective choice and hobbyists alike. [Dual Head Design & Multiple Light Modes] This versatile flashlight features both blue and violet light sources with 254nm 365nm and 395nm wavelengths. perfect for counterfeit detection professional appraisal of jewelry stamps and currency as well as fluorescence inspection in gemstones paintings and ceramics. the dual modes provide comprehensive detection capabilities for various materials. [Durable & Portable Construction] Crafted from aluminum alloy this torch ensures effective heat dissipation and long-lasting performance. its compact size (13x2.2cm) and lightweight design (222g) make it easy to carry for fieldwork travel or daily use. the robust build guarantees reliability in various environments.