Grow room reflective materials compared - Silver mylar - Matt white paint - Gloss white - Grow tents

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We compare the most common reflective finishes used in grow rooms. We look at a HPS and LED lighting system and demonstrate the benefits of using a good quality reflective surface to maximise the amount of light reaching your plants. More light = higher yield so this is very important!

Test results for HPS setup (LED is very similar)
Quantume (PPFD) sensor reading for the following setup:
No walls: 640 PPFD
Wooden wall: 680 PPFD (5% increase)
Matt white wall: 750 PPFD (20% increase)
White mylar wall (same as glos white paint): 750 PPFD (20% increase)
Silver Mylar (generic): 800 PPFD (27% increase)
Silver Mylar diamond pattern: 800 PPFD (27% increase)
Grow tent lining Lighthouse tent: 840 PPFD (33% increase)

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