question about hydroponics

You can even trim the lower roots tips back too if you need to.

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Originally Posted by st0n3r

yeah ok man thanks, one more question though.........

..........is HPS light bulbs expensive to run in electricity?

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250watts=0.25kilowatts....for every hour of operation you have a consumption of 0.25kw/h, for every day into 24/0 cycle the consumption comes up to 24x0.25=6 kw/h......multiply that per cost of kw/h and there you have the total consumption of a 250watt hps in one day with full operation.....


NGOS:)