Flashes at a rate of 70 to 120 FPM, with first flash less than 13 seconds after startup. Functions at 13v for 36 continuous hours with 16-32 cp lamps at 35 amp max (#182 and 183), 20-32 cp lamps at 45 amp max (#282 and 283), 10-32 cp lamps alternating at 25 amp max per side (#286). Five available versions include 16-lamp with 2- or 3- terminal, 20-lamp with 2- or 3- terminal and alternating 10-lamp with 3-terminal. Features ISO relay with electronic control circuits.