The brightest headlamp in our professional series, the Apex has been a favorite of extreme outdoorsmen and cavers for years. Truly the pinnacle of waterproof LED headlamp design, the Apex combines the qualities of both the Eos and the Quad. With a single Regulated Maxbright LED partnered with Four Regulated Ultra bright LEDs, the Apex provides either a powerful spot beam or a bright flood and switching between the two is incredibly easy. The four Ultra bright LEDs come in red, green, or white in order to suit your personal preference. Proprietary heat sink technology allows the LEDs to burn brighter and longer. The Apex is compatible with alkaline, lithium and rechargeable batteries.