Safety Flag For Long & Wide Loads Bright LEDs for Nights and Poor Visibility Conditions (Green) The LOADGATOR is the most versatile safety flag on the market, ready to use day or night, LED life 250 hours on flash mode. Dual color LEDs included, in the battery compartment a switch allows you to change LED color to Red or Yellow. Red LEDs are for rear long loads and Yellow LEDs are used when lights are facing traffic as with wide loads and machines. The LOADGATOR can be clamped directly to wood, ladders, equipment, trailers etc. For logs, big timber, pipes, tubing etc. use a bungee cord. You can screw it to a 2x4 then attach the board to odd shaped objects by what ever means you want or screw it to your load to prevent theft on long trips.