NEED HELP WITH LIGHTS AND/OR RELAY/FUSE

I recently bout these off of Amazon and are really great and bright. I intended to use them for my blinkers and they worked. However, when the blinkers are on and I hit the brakes, the blinkers stop working until I let off the brake pedal and then they work again. I can only assume this is a matter of fuses or relays but I don't have a clue what to look for.
Any of you guys got any ides??

 

Welcome to the Forum.

Do the turn signal lights on the dash go out when brakes are applied??

What happens with the hazard lights same problem?

Have you replaced all 4 bulbs with the LED Bulbs??

Have you swapped your regular bulbs back in to see if that cures the issue.

Since the Brake lights and Turn Signals don`t share a common area but the ground.

Does your Truck Have one of those Evil 4 Pin converter boxes??

 

To your first question: Yes
2nd: Unsure, didn't check that
3rd: I only have the 2 in the rear to worry about because the front are already led and I added a new relay so they don't blink really fast
Regular bulbs work like normal
4 pin converter box? Don't know anything about that. Truck is mostly stock so, maybe? Honestly don't know

 

Did you swap out the relay yet? When putting in LEDs, you'll need to use a EP35 relay

$17 Electronic Flasher, 3 Terminal I.S.O. (EP35C)

https://www.amazon.com/Novita-EP35-Flasher/dp/B00064LQL2. Local parts stores should have it also.

Additional infomation below on install - even if you don't have the hyperblink, you should still swap it.

Could also be that your LEDs are bad (ya know how Amazon can be at times with quality, especially LEDs).

https://youtu.be/kVQgM7fOHnE