Four medium sized nicely, to maybe 10 small ones.
Go for the 600w for your grow, some say 600ws are the most efficient of all anyway.

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faithless Reviewed by faithless on . How many plants under a 430w HPS ? I`m looking to grow a dozen shortish Indica`s (Afghan) and wondered if i would be better to go for a 600w for better bloom. Thanks guys. Rating: 5