Continuous lighting time: Front black light: Low 13 hours / High 3.5 hours / Top white LED: 24 - 25 hours
Specifications: Indoor type / Rechargeable / Rated luminous flux: Top white LED: 45 Lm, 3.3 ft (1 m) Illumination: Top white LED: 500 Lx w/ magnet, Peak wavelength: 390 nm - 395 nm, Battery Lithium-ion 3.7 V, 4400 mAh
Blacklight Applications: Promotes hardening of UV hardened resins, prevents counterfeiting credit cards and hygiene management equipment, and checks for foreign objects such as inspections, surface scratches and other accessories, such as dust and scratches on arts, jewelry, etc. AC adapter for charging is not included. Use commercially available adapters. (DC5V/2A)
This product has a UV peak wavelength of 390 nm to 395 nm (nanometer). It does not react with counterfeit stamp on bills.