Circuitron
FLA Amtrak-Style Strobe Flasher

Walthers Part # 800-1100, p. 773 Walthers 2012 HO Scale Reference
HO scale, $18.95, not currently in stock at Walthers, Expected: Unknown

 
Duplicates the action of twin Xenon strobes found on many Amtrak locos. Designed for mounting inside HO Scale dummy locos, uses 9V transistor-type battery to provide approximately 100 hours of flashing. Twin white lamps flash brightly about once a second.