Switch to LED , What problems do you hade/have

G

Greennner

Well-Known Member
I just Switched from a 400w hps to a
Samsung f strips build
(24 1 foot Double raw strips total 350-450w on 3×3sqf)

I have to Change some things :
- exhaust ist now to strong
-need a heater (just at Summer time i think i dont need em) to get at min 26° C
-and maybe a humidifier( and watch them everyday ,same like temps)
- The first day of led , i had the hgl'240's over my light,i changed it at day 2 , and hang them down to get a Bit heat to my plants.(a have about 25-27°Cä


And in the beginning (like me) i have to finde out the right distance from cannopy to led
In every stage(rooting,e vegi,l vegi,e Flow,m, Flow, and Flower:)
Or i will burn down my micro forest


What problems do you hade/have to solve ???
 
Jeeyah

Jeeyah

Well-Known Member
I used to stress my plants in veg on a 24/0 light cycle. With T5 it was never an issue. Now I always use 18/6.
 
B

boostedhonda

Well-Known Member
Don’t kill them with light in veg, hopefully u can dim your light. too much light and stems start turning purple and leaves turns pale and droopy
 
Moflow

Moflow

Well-Known Member
@Greennner
Do you have 2 x meanwell HLG 240s?
Running in a 3 x 3 tent?
450 watts in a 3 x 3 is far too powerful .
I grow in a cool area so I keep the lights on 24/0 to keep temps up.
I use a 12v pc fan in a piece of ducting at top of tent discharging the warm air to plants Below.
Ive 5 xLM301B strips dimmed ~ 90 watts about 14" from canopy at around 400 umols for aggressive veg.
 
G

Greennner

Well-Known Member
Moflow said:
@Greennner
Do you have 2 x meanwell HLG 240s?
Running in a 3 x 3 tent?
450 watts in a 3 x 3 is far too powerful .
I grow in a cool area so I keep the lights on 24/0 to keep temps up.
I use a 12v pc fan in a piece of ducting at top of tent discharging the warm air to plants Below.
Ive 5 xLM301B strips dimmed ~ 90 watts about 14" from canopy at around 400 umols for aggressive veg.
Click to expand...
Yes i have 2 hlg240
(2 panel each panel is 3 mm aluminium
With 12 Samsung f strips in each panel)

Now they Fire +-180w at 3 feet distance (cannopy to led) since day 8 (yesterday)
Lux meter says 14000lux.

I live in a cool area Too .
Till now i get my heat from the room heater.
 
G

Greennner

Well-Known Member
Hmm,
I think it is normal that the Plants Look a Lot lighter then under hps, because of the diffrent light color. They Look a Bit light green.
Ms 900 with canna aqua ph 5,5-5,8
 
Moflow

Moflow

Well-Known Member
A drivers or B drivers with built in potentiometer?
Have you a kilowatt meter?
I'd dimm both lights down to min , if they're A drivers and get lights closer to plants - less light wasted on the walls.
Using lux meter you need ~ 20,000 lux - 40,000 for good veg.
 
G

Greennner

Well-Known Member
Moflow said:
A drivers or B drivers with built in potentiometer?
Have you a kilowatt meter?
I'd dimm both lights down to min , if they're A drivers and get lights closer to plants - less light wasted on the walls.
Using lux meter you need ~ 20,000 lux - 40,000 for good veg.
Click to expand...
I have the A Version , i dimmed it at the voltage adjust screw. (At the amp adjust the Watt dont Go down, at least my Power meter says that)

I have a cheep powermeter i have 2 diffrent hlg240/24A one from Taiwan one from China
When iam right, one gets down to 25w and the other min 80w .
(The funnyest thing is that on full Power (hlg amps and voltage adjust in max , My powermeter says up to 450-500w EACH hlg240
)
 
G

Greennner

Well-Known Member
I was wrong with lux
It says 18000-19000
Tomorrow i Go a half foot deeper with the Panels , lux meter says 22000 at 2 1/2 feet
 
G

Greennner

Well-Known Member
Moflow said:
A drivers or B drivers with built in potentiometer?
Have you a kilowatt meter?
I'd dimm both lights down to min , if they're A drivers and get lights closer to plants - less light wasted on the walls.
Using lux meter you need ~ 20,000 lux - 40,000 for good veg.
Click to expand...

Today i hang the light deeper (1,5-2 feet above cannopy)

Now they have 25,000-28,000 lux
And i think 80w each panel (160w total)
 
G

Greennner

Well-Known Member
Do you still juse your circulation Fan?
With hps it was a must.
I dont know if i should juse a Lot smaller one

Did some of you changed it (with hps to led )?
 
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