Brighter tail lights

[Nolowrider]

While taking a afternoon cruise the local PD decided to pull me over. I get the whole nine yards, lights, siren and a voice over the PA telling me to "exit the vehicle with my hands up" . I was not speeding, I always do aleast 10 mph under the limit because I know they are looking to pull me over. I get out and he gets all of my info, license, registration, insurance and he ask me "do you know why I pulled you over?". I said no, "I know I was not speeding", he "No, because your tail lights are not bright enough". Aftet I tell him that "Look, my truck is almost 35 yrs old, he lets me go with a "warning", and "oh by the way what size motor do you have in there and is nitrous legal on the highway?. I think he just wanted to know what I have. I cruise through town below the speed limit, always use my blinkers, ect. I have NEVER got a ticket in my life.

So, what can I do to get my tailights brighter? I am already using the LED replacedments for the 1157 bulbs. I have checked for shorts and can't find any. I just need to keep them off my asz. I have 12.4 volts to the lights, I don't know what else I can do?