My initial thought is this is counter intuitive for keeping light from roots although I know people grow in white plastic containers. I'm wondering if white buckets would cause any problems for DWC
Yup, I used the blue lowes buckets when I did hydro. They worked nicely and are only like $3/ea you can wrap the outside in white poly film if you’re just trying to reflect light and keep your buckets from heating up to much(only sort of works, if you’re running hid and no chiller it’s not gonna be much help)