Whelen SPS-660 Comet Flash Strobe Pack

kabsher8093

Member
Oct 12, 2013
176
KY
Been trying to change the flash pattern on this strobe unit. I can only get it to to flash 2 patterns. I've touched the yellow wire to +12vdc but it won't change. If you hold it to +12vdc it flashes the comet pattern.
Does this unit only have 2 flash patterns ?
 

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