LED Fog light blinking issue

[CTScott]

Originally Posted by BruceLee

OK, I let my friend drive my car and I noticed that when the engine is idle, say waiting in front of stop sign, the led is blink;
next when reverse the car out from a parking lot, at that speed, the LED is blinking as well;
But while driving OR the car is put into "P" position (my car is an AT), the LED fog is fine.
(the LED FOG light is set of Philips Daylight 4, I did not use the module came with the box)

It may be that the voltage is too low, until the alternator starts outputting more with the car in motion, but again I would try connecting it directly to the battery to see if they still flash.