anything we use to change the tint of a light, also lowers its output.
for example, a Lee 803 filter drops output by 20%
I would rather choose an LED that has tint I like, than add a Lee filter to an LED whose tint I dont like.
I did have fun testing Lee Filters, but they did not make me want to use a Low CRI LED with filtered green tint, when I could have a High CRI LED that did not need a fragile plastic filter added.