Pelican's 2490 is a multi-purpose backup light. It runs on four AA batteries and produces an output of 51 lumens. That's enough to provide effective white light out to about 30 yards and not blind you while using the light to search under a car seat. You can also use the 2490 as a traffic wand. All you have to do us is remove the lamp head and replace the lens with one of four supplied colored lenses.