Check the listing for details. HO Scale Circuitron 800-5102 FL-2 Alternating Flasher Circuit Board E0136. Color: Unpainted, Condition: Used. Listed at 21.38 USD. Thank you for visiting the my Trains-West.LLC EBay store. I'm very excited to bring you this item. HO Scale Circuitron 800-5102 FL-2 Alternating Flasher Circuit Board Only Product Information Flashes LEDs or lamps. Connects to Detection Units. Maintains constant flash rate. 1.5 x 3" printed circuit board. Requires 10-18V AC or DC input. 250 ma. output. Collection item, C-9 Factory new condition, unused, As-is. ############################# Combined Shipping is available: Yes I offer combined shipping orders that have more than one item. The additional item/s must end within 24 subsequent hours. Please follow these steps in order: Buy products. Do NOT PAY yet. Request a combined shipping invoice. Pay after you receive the invoice. Please be patient it might take several days to combine and send the invoice .... I expect payment within 8 days of item close.