Model 5110 MiniBeast™ Mirror Light Single or Dual Color Flashing Warning Lights are available emitting light of any dual color combination. Each light includes 8 flash patterns, 4 Wires (Power, Ground, ASync & Pattern Select) and Sync/ASync compatibility with any of our other warning lights, permitting the group to flash together or to alternate. Patent Pending optics provide a very wide angle SWEPT BEAM, making the light highly visible, even for those 75° off the beam axis. Models for Back Surface Mounting are selected when the light is to be located on a substantially flat back surface of a mirror. Stainless Steel screws are included with the light.