Hey, neat! Yeah, you want these to just about match the taillight intensity, otherwise it'll make your brake lights less conspicuous. Could dial back the power feed to the LED strips, and/or do like this (@0:41 if the time-indexed link doesn't work):
going to resin them first and then tone them down to almost tail light intensity (maybe a tiny bit less) to match the LED rears I've done with your help! 6 years and they still look good on the wife's car. mine gets the back burner since I'm making fresh plastic parts for my convertible and some for a barracuda I hope to get soon. and then I get a goofy idea to add in MORE leds using SMT leds instead of drilling hundreds of holes,