I bought a Night eyes scan light and gun mount light. The guy told me I could see a foxes eyes at 200 yds at half power thought to myself I don't think so. But took them out and its true. They are the best lights I have bought yet the second night I had them I watched the neighbors cat cross the road in the dark and his place is 255. Awesome lights for 99 bucks a peace the best deal to I paid twice as much for others and the batteries only last 3 hrs this one 8.