Reflective walls

I've used those cheap 'space blankets' from walMart and kmart. the ones I used were sheets of Mylar, maybe 4'x6' ... work fine, :smokin:

i c. so do then those too reflect 98% of light?

Quote:

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Originally Posted by oldsanclem

gwm grams/watts/month is the bottom line

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Yeeeesssss....