Features & Specs: Output: Classic (15), Ultra (40) Wavelength: 593nm Color: Amber-Yellow Adjustability: Focusable / Threaded Lens Switch: On-Off Material: 304 Stainless Steel, Polished Power Source: 3.7V 18650 (Case Positive) Emitter: DPSS 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 be taken using a UV Lens Filter. Varied lenses. Full camera settings may also be included here at a later date, for some specific product photographs. Please read each section below carefully if you intend to purchase this item. This is not a toy, and should be treated with extreme caution and care. DO NOT POINT AT, AROUND, OR NEAR EYES. MAY CAUSE SEVERE EYE DAMAGE IF MISUSED. Warnings Battery & Charging Safety Refund Policy Use common sense when handling this item, and any other items that are available on our website or other platforms, distributed by our brands. Disclaimer: This laser is intended for use by licensed professionals, Researchers, and other experts. We do not take responsibility for misuse of this item.