You need an electronic flasher unit compatible with LED lights.
LED’s don’t have enough current draw to make the old style flasher work.
Also in your quest for lowering draw with LED lighting you will run across devices to cause a higher load and make a flasher unit work.
DO NOT USE THESE, as they cause more load and ruin the whole point of using LED’s
Just so you know, my entire car is LED lit except for the headlights.
Those are on relays with 10ga wiring and GE Nighthawk bulbs.
(Night and day difference)
Remember when you use a relay kit for your headlights, not only will you take that load off your cabin wiring, but off your headlight and dimmer switches.
