the LED #455 replacements that I'd picked up only blink on once every two seconds, nowhere near as fast as the good old #455's by GE that blink about 2-3x faster. I'm not real experienced with buying LED's but sure wish theyed post the blink rate average for them, like 1 cps or 1.5 cycle per second, or 70-80 blink per minute whichever.