The 500 lumen ProTac 2L-X is a compact, powerful light for easy carry and storage. This ?duel fuel? flashlight provides up to 2.75 hours on high and 30 hours on low when used with CR123A batteries or 3.25 hours on high and 30 hours on low when used with the rechargeable SL-B26 battery pack. TEN-TAP programming allows the choice of three programs for multiple output configurations based on your intended use. High/strobe/low, high only, low/medium/high configurations provide a wide-range of utility and simplicity. The ProTac 2L-X is made with durable, anodized aluminum and is IPX7 waterproof rated to 1m for 30 minutes. Includes nylon holster and removable pocket clip.Features:High/Low/Strobe modes;Max/Min: 500/40 lumens, 165m/49m beam, 3/30 hours;Three user-selectable programs: high/strobe/low, high, low/high;IPX7 waterproof to 1m for 30 minutes;Multi-fuel; uses SL-B26 battery pack or two CR123A lithium batteries