RM19815329840878528 Features: * Bulb Type: 390nM to 395nM * Bulb Life: 100,000 hours * Body Material: Aluminum; Silicone O-rings for water resistance. Voltage: 4.5V Material: Aluminum Alloy Working Time: 4-6 hours on full battery Battery: standard 3xAA alkaline battery (not included) Compact, high-quality Design. The strong aluminum alloy body makes this product durable and long-lasting, and the large head with 51 LEDs makes this flashlight brighter than other products. Pocketman benefits Like all products ofPocketman, the UV Tracker 51 is built to last with rugged aluminum construction and high-quality UV LED bulbs with a lifespan of approximately 100,000 hours. Application Field: amp; nbsp; 1) medical devices; 2) disinfection and sterilization; 3) Ink curing; 4) metal crack and crack detection; 5) photocatalyst light source; 6) Money checking and counting equipment; 7) anti-counterfeiting industry; 8) medical measurement and safety testing of biostatistics; 9) hydraulic leak detection, etc. AMP; nbsp; Technical Features: 1) 5mm violet light is encased in glass and nickel-plated alloy case, which further improves the luminescence of violet light efficiency, reduce the attenuation of fi light