The brightest headlamp in our professional series, Apex has been a favorite of extreme outdoorsmen and cavers for years. The pinnacle of waterproof LED headlamp design, Apex incorporates a single Regulated Maxbright LED plus four Regulated Ultrabright LEDs. Apex is capable of a powerful spot beam or a bright flood, and two switches make changing modes intuitive. Proprietary heatsink technology allows the LEDs to burn brighter and longer. Apex is compatible with alkaline, lithium, and rechargeable batteries.