Whelen's ULF44 LED or Super LED Flasher with Syncrhonization is a four outlet four channel flasher with 62 scan-lock flash patterns allowing for alternating, simultaneous, and cynchronized flashing lightheads.   Each channel can run up to 5 amps (60 watts) and is short circuit and thermally protected.  Imput controls include scan-lock and synchronizations.  This unit is fully encapsulated for water and shock resistance.  

Dimensions: 1 5/8 H x 2" W x 2 3/4 L