1157 led bulb

What is your question?

im trying to upgrade car lights to led bulb but having issue with brake lights. my brake lights are 1157 with 2 filaments (bright for brake and dim for parking lights) original incandescent bulb works fine. but when i plug in 1157 led, brake light works fine but parking light doesnt lit up. i know its not polarity issue and i tried 2 different bulbs they both are same. anybody have solution?