I welcome back to the Migro YouTube channel my name's Shane the founder of Migro today
we're gonna look at the little IKEA indoor grow light it's called a Vaxer
unit and this is a 17 Watt 16 and 1/2 Watts from the wall unit and covers
a 60 centimeter by 30 centimeter grow area so we've set it up it's got its own
little stand you get with it we've just added some rigs here so you can put it
on our test mat and we're gonna take multiple measurements would ask the mat
here well at this time I wanted to show you how taken there the readings and how
I'm calculating than the average pbft and then the ppfd for what the you know
set up for test now let's look at the power consumption it's at 16 and a half
watts you can see the lead runs into the LED driver the transformer from from AC
to DC and up into the lighting unit in each of these five elements there is
three LEDs two whites and a red LED and as I said before in total it covers
really a 60 centimeter by 30 centimeter grow area so we've divided this 30 by 60
centimeter grow area into eight squares we're going to measure the ppfd level in
each of those squares so I've done up a little worksheet here and on the
worksheet you can see that we've marked out the 60 centimeter by 30 centimeter
area so the area is 0.18 meter squared we've taken down the power to 16 and a
half watts and now we're going to take the ppfd and
each of those squares the total of divided by eight and get the average
let's go
this is the readout of the sp500 the ppfd meter its measured in tens of units
so first square we have a reading of 91 which is 40 30 60 80 160
one sixty and one so let's work out the total of this we're adding them all
together and dividing them by the total amount
so that's 920 is the total amount and we divide that by 8 the number of measures
taken and the PPE ft average is 115 so the average of all those squares is 115
and there to get the total ppfd output that's the average per square and over
the area so you multiply 1 1 5 by 0.18 and that equals 20 point 7 BP ft and to
get our efficiency you divide the 20.7 by sixteen point five watts and that
equals one
1.25 the deficiency at this unit is 1.25 micromoles per watt which is pretty good
next looked at at the spectrum so I'm use the sensitive passport then you know
we used to measure the spectrum and looked at the totals so the amount of
blue in the overall spectrum is 12% which is pretty good for a full spectrum
and sort of 12 to 15% is ideal so it's just on the bottom limit and then it's
perfectly matched in terms of green and red so both similar in terms of
photosynthetic efficiency so it's a perfect light for full spectrum growing
so without a bad light at all you get an average as I said of 115 over
2 foot by 1 foot area and an efficiency of 1.26 micromoles per watt which is
which is actually pretty good so yeah well we're checking out I'm gonna have
you have a godus and sounds look and use it and I'll let you know how you're
gonna cheers bye