BL 91 Two Tone LED Beacon Light. 360 Degrees of visibility with two different colored lenses available. Also can be solid color. Replace your unreliable power hungry strobe beacons with the BL91. One Watt super bright LED with rugged shock proof mounting. Rated to over 100,000 hours of use. Uses 1/10 of the power of strobe lights. One year warranty and 30 day satisfaction guarantee. Available in red, blue, amber, clear or any combination of the two.