Quote Originally Posted by hoodrider
Don't waste the money on mylar. Spend it on better lighting, airflow, or nutrients. Mylar is simply a grow industry gimmick. It is something completly un-neseccary that they want you to think will boost light output by a lot.

Plus it's a pain in the ass trying to size it and stick it up and keep it completly flat.
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anyhow.....go to your local doller store, and go to the gift wrap section, the shiney shit is mylar, if you take and crack open the end of the roll and flip a corner over it will be silver mylar underneith on the back side, it comes in 5 ft rolls and is only a buck a roll................ its no were near as strog as the shit yuo buy from hydro shops but it does roughly the same thing