Growbig420420
Active Member
Is 9000 average lux too much light for a 1 week old seedling
Seeing light
- Thread starter Growbig420420
- Start date
Wizzlebiz
Well-Known Member
I use lux readers with extreme success.
Up too 10000 lux for seedings. If it looks stressed take down to 7000
Green Refuge
Well-Known Member
If you have iphone download this par measuring app its pretty accurate.
growlightmeter.com
Photone - Grow Light Meter
The grow light meter app to measure PAR / PPFD, DLI, lux / fc, or Kelvin with your iOS or Android phone. Including PPFD meter and DLI conversion for plants.
growlightmeter.com
HydroKid239
Well-Known Member
Cheap PAR meter AND accurate!!!
Full disclosure here... I do not own this app. I just figured why not share what I found. I was looking online to actually buy a light meter and seen the prices.... so being the tight wad that I am I searched for bargains.. I found an App in the apple store that reads lux and the basic hoo-ha...
www.rollitup.org
I used the App mentioned above before. It seems legit.
Green Refuge
Well-Known Member
Yeah it's really nice and seems accurate according to people that tested it against legit par meters.
HydroKid239
Well-Known Member
I went and paid for the LED par meter add on for 5 bucks. Pretty nifty app.
Green Refuge
Well-Known Member
Worth every penny for what it does.
EhCndGrower
Well-Known Member
Do you need to pay for the LED portion or do you think the ones offered for free would be good enough. I know they are designed for different lighting sources, but $7 is $7
HydroKid239
Well-Known Member
This is under my ts1000
Green Refuge
Well-Known Member
I tried it with different light spectrums and it gives different readings. As in select cmh 4200 and put it under led gives a different reading than led under led.
Green Refuge
Well-Known Member
My 315 CMH at around 3 or 4 feet putting out 300ppfd. Wonder if that's too much for a month old plant.
HydroKid239
Well-Known Member
Is that the only option? No cfl bulbs and heat mat handy?
Lordhooha
Well-Known Member
My 650’s at home put out 600 too 800 PPFD at 45% and about 30” away
Green Refuge
Well-Known Member
I have a T5 fixture with 4 6500k bulbs. I'll test it with the app see if it's less powerful than the 315cmh.
Green Refuge
Well-Known Member
Holy shoot that's beast mode status. Be really nice for flowering.
J232
Well-Known Member
Pretty sure the guy who made that app is kicking around here somewhere.If you have iphone download this par measuring app its pretty accurate.
Photone - Grow Light Meter
The grow light meter app to measure PAR / PPFD, DLI, lux / fc, or Kelvin with your iOS or Android phone. Including PPFD meter and DLI conversion for plants.