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Gram per watt does not apply
in marijuana grows.
Here, let me teach you something...
.MYTH #1: Comparing grams harvested to watts of light used
is a good indication of an indoor garden's performance.
TRUTH: Just knowing the weight of a harvest and the size of the
lamp used is not enough information to make a useful comparison
and deem how successful a growth cycle was.
All else being equal, a 6 month old plant can generally outperform
a 3 month old plant if all that is compared is the size of the plant
to the size of the lamp, even if the lamp is less efficient once time is
taken into account. A much more useful way to calculate
your success is determining your grams per day. Take the weight
of a harvest and divide it with the number of days grown to find out
how much was produced each day.
Calculating the grams per day for each harvest will allow a
gardener to compare the success of different harvests, even if the
number of days in each cycle is different.
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