Where lightweight is a must ultimate power and function are a demand and durability is an expectation - we introduce you to the Apex Pro. Professional athletes and adventurers around the world have marveled at the power of the Apex. In an effort to meet their unique and ever evolving needs we have developed the Apex Pro to provide a faster and lighter option while still providing the ultimate in brightness and output. The Apex Pro is powered by 2 CR123 lithium batteries protected in a highly durable and waterproof case. Designed for professionals and perfect for all users.