Well instead of practicing this grow room set up of a hole in the ground covvered in sodd and what not that has obvious problems that people have pointed out, could you use these bottles as reflectors in your own grow room? i didnt read the whole post just up until page about page 7 so i apologize if someone has already suggested it.
but he says they make the light stronger and what not, well if you put them around or above your grow room would the bleach bottles be able to reflect the light in a useful way? could our bulbs that we already have power the bottles?