The SureFire Aviator Dual-Output Flashlight with Red light is a perfect choice for situations that don't require a high degree of illumination. It features a primary white LED light of 250 lumens alongside a lower powered 5 lumen function. In addition to its "normal" white light functions, this Aviator comes with a secondary red colored LED with outputs of 240 mW and 1.3 mw. The gentle red light is notably useful for improving contrast and for reading red-light-readable topographic maps. Both settings are focused into a handy, far reaching beam with the use of SureFire's own Total Internal Reflection Lens (TIR). The colored option has both a high and low output setting, the lower of which can help greatly increase battery life. Features of the SureFire Aviator Aluminum body Mil-Spec hard anodized finish IPX7 waterproofing Weight: 3.1 ounces Red light function, useful for reading red-light-readable topographic maps High and low output modes for both SureFire Aviator 5/250 LU White/240mW Red LED Black Flashlight AVIATOR-RD