Fenix TK35 is a convenient extremely high intensity multi-functional flashlight. Featuring in max 820 lumens output, offering four brightness levels., two different flashing functions and a signaling mode, powered by the frost-resistant CR123A lithium batteries or high capacity 18650 rechargeable Li-ion batteries, it definitely can satisfy various lighting needs in different environments. The unique design of the batteries holder not only can compact the light but also make it comfortable to hold and convenient to use. With its dual button switch, you can transfer the brightness levels rapidly. It perfectly combines the outstanding performance and the great enjoyment of using it. TK35 is the best choice for outdoor searching, caving, or using as a spare light for automobiles with Fenix advanced technologies.