Features & Specs: Output: 15-4,000* Wavelengths: 465nm, 488nm, 520nm, 532nm, 591nm Colors: Sky-Blue, Cyan, Green, Golden-Yellow Flashlight: 160W Batteries: 18650 (B34) 4x Tinker Tavern cases included.8x (4 Cases of 2) Batteries included. 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.