can you explain again, i couldn't understand you clearly

no pulse or flicker at all

before using halogen it was flickering and it seems at idle that the alternator is not quiete happy with the load from the low beam alone, so there is some vibration at idle rpm,

also rolling two+ windows down at the same time it used to dim now it doesn't seem to,

light output is stable all the time i don't remember exactly but even when cranking it doesn't seem to bother or dim (don't quote me on this) it probably has it's own circuit which handle wide voltage inputs


temperate of the bulb is acceptable it's not very hot to handle unlike halogen that seems to cause burns

 

bump !!!

 

You know how movies are just a series of pictures, tight? They project one frame after another, and that when changed faster than about 18-20 fps appear not to be single pictures but a smooth flowing action? Your brain is tricked into not seeing the flickering images. Same with LED's, they light up by turning on/off rapidly as opposed to traditional bulbs that heat up an element to make a steady source of light. If you look at some LED tail lights, like the Cadillac CTS's, you can see them do this if you blink and look away. The light will not appear to be a solid beam.

 

I know that some RGB bulbs that designed to give other colors than RGB
do some sort of fast switching between the colors so "our eyes" see another color.


they even get a color that is close to white from Red,Green,Blue !!!


anyways interesting finds, but can you explain how they flicker in our eyesight? really didn't pay that attention should I look and blink then look back? what do I expect to see ,will i see it off for a moment?


I can see some footage of cars startup on youtube ( not really sure if they are LEDs) but for taillights of modern cars the appear weird on camera like if you would try and capture CRT monitor using camera