Valkyrie 573 is now back in stock! Features & Specs: Output: Classic (15), Ultra (50) Wavelength: 573nm Color: True Yellow Switch: On-Off Material: 304 Stainless Steel, Polished Power Source: 3.7V 18650 (Case Positive)   Glow Vials 🧪 (Optional): Glow Vials are inserted into the cutouts near the top of the Steel body of the Valkyrie laser and can be charged with UV or visible light (such as a Flashlight).   Designed by Tinker in United States. Engineered in Greece. "Valkyrie" product photographs are captured on Canon EOS R7 at 32.5 MP. Color accuracy achieved using unedited sensor data for 97% of available "Valkyrie" photographs. Some photographs may...