Use PT54 red on my direct drive on my hog hunting weapons. My crossbow uses a modded 501B orange peel reflector powered with a 18650 lifepo4 for desired voltage and 6A+ with a FET switch powered by a CR2016. My DPMS LR308 uses a three cell 18650 nimh @ 12A using the same FET switch except wired with a pigtail switch using an aspherical TR1200 host with extension.