royalx7
New Member
Hello, I purchased a couple of Whelen Ion Amber from amazon an intended to put them on my work truck. But i tried to test them using a battery charger and they seem to turn on the steady burn but I can't get them to advance to any pattern when i touch the white/purple wire to positive 12v. Both of the units i purchased are doing this, are they defective and should i return them? or is there something I do not know?