Markshomegrown
Well-Known Member
will do, when the lights back on
mark's perpetual grow
- Thread starter Markshomegrown
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Markshomegrown
Well-Known Member
The results are very interesting, took all readings, against the wall, with a tape measure level with the light
first HPS
12" 51,100
18" 44,300 canopy level
24" 27,300
3ft 12,000
LED
1ft 45,000
2ft 38,600 canopy level
3ft 19,500
first HPS
12" 51,100
18" 44,300 canopy level
24" 27,300
3ft 12,000
LED
1ft 45,000
2ft 38,600 canopy level
3ft 19,500
OneHitDone
Well-Known Member
Against the wall with plants between the light source and the meter?
Can't believe the led isn't dropping off faster than that.
Markshomegrown
Well-Known Member
Moved the plants out of the way, unshaded, but my led panel is large 80cm x 80cm with most of the bulbs(20) going around the outside.
spotlight reflectors cause the focused light on the canopy narrow and strong
Last edited:
Billy the Mountain
Well-Known Member
Your numbers are bogus
Light falls off with the square of the distance. I.e. 2x the distance, 1/4 the intensity
Markshomegrown
Well-Known Member
The reflectors on the LEDs are narrow, but they do start overlapping at x distance.
lower I go the more overlapping light I get.
Billy the Mountain
Well-Known Member
OneHitDone
Well-Known Member
I can see what he is saying - @12" the reading is between the beams of light so it get's stronger as you move down and they start overlapping.
OneHitDone
Well-Known Member
At 12" when you move the sensor across the canopy is the intensity higher directly under a lamp or between?
Markshomegrown
Well-Known Member
I have recorded me doing the test and took screenshot at the 3 points.
If I get closer then 12" the lux drops off quick.
The lux is higher dead Center between the leds
At 12"+
If I get closer then 12" the lux drops off quick.
The lux is higher dead Center between the leds
At 12"+
Markshomegrown
Well-Known Member
About time for an update, day 42 (12/12), The canopy all looks the same, 438w of led covers about 1.1m x 1.3m, and the 600w HPS is covering 1.2 x 0.7m, there is some overlap between the lights but still.
left side all under the LED
The far-right side under the 600w HPS
and a center view with the lights on, see the difference in colour but the canopy look identical, leaves have curled a little under the HPS
Here is a side view of one of the plants, this plant is just over 2ft tall and 2ft wide in a 29ltr pot, under the led
left side all under the LED
The far-right side under the 600w HPS
and a center view with the lights on, see the difference in colour but the canopy look identical, leaves have curled a little under the HPS
Here is a side view of one of the plants, this plant is just over 2ft tall and 2ft wide in a 29ltr pot, under the led
Markshomegrown
Well-Known Member
48 days in flower 12/12
Here are some pictures, the buds are still putting a lot of weight on, the buds are rock solid and covered in crystals, things are going really well.
Here are some pictures, the buds are still putting a lot of weight on, the buds are rock solid and covered in crystals, things are going really well.
CaliVerner420
Well-Known Member
That's a Qp lol
calvin.m16
Well-Known Member
Markshomegrown
Well-Known Member
Have you seen bk78 plants in early flower
The are the most stretched plants I have ever seen, how can anyone take his advice?
CaliVerner420
Well-Known Member
Oh boy here we go0o0o
CaliVerner420
Well-Known Member
@bk78 you see this guy lol
Markshomegrown
Well-Known Member
You should see the other thread, telling Growers to spray there plants with the light on, under hps this could really mess you up and the plants.
CaliVerner420
Well-Known Member
I would take the pic down Man he's room is clean as fuck and that bucket system is pretty bad ass honestly and pricey gets crazy weight outta few plants of dope