800-5122 - FL-2HD - Heavy Duty Alternating Flasher
The FL-2HD is identical to the standard FL-2 with the exception of the output load capacity. Heavy duty output transistors on the FL-2HD raise the maximum load to 500 ma. per side. This circuit is recommended for boulevard crossing signals with their multiple lights and also for signals in the larger scales which draw more current than the standard FL-2 can supply.