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Distance from bulb or from reflector?
Blind_japanesestarted grow question 5y ago
I found content about the distance from grow lights to the plants. I Know that using a 250w MH bulb the distance should be in a range from 20cm to 30cm. But i dont know If I should measure the distance from the glass of the reflector or from the bulb itself to the plants. Help!
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NobodysBudsanswered grow question 5y ago
from the light itself...
count the bulb is close enough as opposed to filament :)
you'll want to guage how teh plant reacts, anyway.. if it flops, needs more height.. if internodal space is too large, need less height.
take not for different stages of life cycle. they can handle more as they age to maturity.
Fusionanswered grow question 5y ago
I have the solution for you.
Go to apple or play store on your cell.
Download ; a Lux light meter app.
Turn on the app , hold cell at top of the canopy.
Seedlings: 5,000-15,000 Lux
Veg : 15,000-35,000
Flower: 50,000+
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