Princeton Tec Apex Pro 650 Head Lamp
Princeton Tec Apex Pro 650 Head Lamp, The slimmed down Apex Pro was designed with the unique and ever evolving needs of professional runners and extreme adventurers in mind. The Apex Pro is powered by 2 CR123 lithium batteries protected in a highly durable and waterproof housing. Not only lighter in weight, lithium batteries are better suited for cold weather.