Do you need resistors for LED's

[timsz]

In my 71 I have LED lights for just about everything except headlights. I have LED cards in my taillights. Do you need resistors or is just a flasher enough. I have the Tridon electronic flashers. Should you use both the resistors and flashers? Are resistors used on cars with computers? Any info. Thank you very much. My cars not running so I don't know if the LED's hyper-blink or not.

[SteveJ]

My LEDs blink fast. I have some adjustable flashers on order. I'll report the results.

[SteveJ]

I bought these on Amazon. They arrived today, and I installed and adjusted them. The only drawback is that they are silent, so it might be easy to leave a blinker on.

 

http://www.amazon.com/gp/product/B011BTMDQM?psc=1&redirect=true&ref_=oh_aui_detailpage_o07_s00