Before you get too far into it, the link above is for white LED bulb. You absolutely do not want to run a white LED bulb behind a red lens....well unless you want pink brake lights
You have to get red LED bulbs to go behind red lenses.
I just found a new bulb which I can truly say compares to the output of the insane V3 Tritons. Look into Theretrofitsource new Acme bulbs.
If you end up returning the other bulbs due to them being white, in my experience the two bulbs I mentioned above should be seriously considered. The Tritons are expensive and have extra wiring and modules, but the Acme bulbs are only 30 bucks and have almost every bit of output as the Tritons. You will need resistors for any LED bulb you install, but those are easy enough to install. Just find a clean and open area to mount the resistor. They can get hot so keep that in mind.
Here is a link to the 3157 red Acme LED bulb. Trust me when I say these are bright!!! Try them, you wont be disappointed, and this is coming from a hardcore V3 Triton guy who has owned multiple sets in multiple vehicles.