Bushnell TRKR T500L 3 Modes Ultra Bight LED 500 Lumens Blood Tracking Handheld Flashlights w/ 4 AA Batteries 3 Modes: Multicolor White / Red / Blue Blood Tracking Momentary On intelligent switch to change light function Aircraft grade aluminum for superior quality. Ultra bright LED 500 Lumens - 4 AA Duracell batteries included 162m/532ft Range - 1h30min at 500 Lumens