Switchback bulbs blowing fuse

I'm trying to install DRL/Turn signal switchbacks on 2013 Tacoma TRD Sport,every time bulb is installed fuses blow ...replace fuse and install regular 4157 bulb everything is good,any help appreciated
Thank You......
Also have heard that sometimes they will blink rapidly because of LED .?...

 

Almost all of the plug in switch back bulbs don't work without additional wiring or modifications. Our truck uses the CK style base where the bulbs use the standard base.

The rapid blinking will happen, google 'hyperflashing". Depending on where you are located it may be illegal. In Az it is not and I have love the insanely fast hyperflasing turn signals. You can fix hyper flashing easy as well if it isn't your thing.