Princeton Tec Apex Pro LED Headlamp Apex Pro features an intense 3-watt LED with optimized lens that casts an incredibly bright beam, illuminating objects up to 114m away 3-watt LED combined with the Princeton Tec optimized lens/collimator maximizes the beam by balancing long throw with flood light 4 standard 5mm LEDs surround the 3-watt LED for softer light with extended battery life Select from 2 lighting levels on both the 3-watt and standard LEDs to meet your lighting needs; features a flashing emergency strobe Power-regulated circuit board ensures consistent lighting levels; Apex Extreme provides 2.5 hrs. of regulated light and 100 hrs. of total burn time on high