5 seconds here. No need to piss off the guy waiting behind you at a long light. You can always release and re-apply the brakes to get another 5 secs. if traffic has not come from behind yet. These things work great!!I think I will cut the green wire when installing mine. I feel the 5 seconds of flashing then full on is adequate. Flashing all the time may be distracting to other drivers.
+1 for me too....though sometimes, the hypers like to stay on all the time, for some reason?I cut the green wire (5 second flash, then solid). I commute in morning darkness and I know those LEDs are very bright to the folks behind me. They get the message well enough . . .