Very nice collection Jmaxton .Cant wait to start growing my seeds ... My setup isnt fully ready yet , i have everything except something to cover the grow rack

since the fluoros i bought ,T5 are so powerful they give an instant headache. If anyone has any suggestions to what material i should cover my rack with(has to be cheap) ,

will be very helpful.one thing for sure is that i need to use a layer of white material for reflecting light.