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05-26-2013, 01:01 PM #1OPSenior Member
Progrow 180 - Grow Box - Possible LED Burn. Help!
Hi all, long time no see!
Just in the middle of setting up my new led grow box. The plan: to make a very small compact unit that could easily be modified. My setup uses storage boxes that can be stacked - if i run out of head room i just add another box!
The environment is controlled be by two 12v temperature thermostats - one controls a 12v pc fan, the other a 12 heater. Uber simple uber cheap!
The boxes can hold 84lt, I'm currently using two stacked: 1.4ft by 2.25ft by 2.5 ft cubic feet: 7.875. The inside of the boxes have been sprayed white.
The led is from prow grow, the PG180. Kicks out 160w and has a switch mode between veg and bloom.
Find attached a few photos!
All looks grand however i have an issue: On to the grow! Ive gone with some of dutch passions new AutoFrisian Dew. All 3 germinated so i popped them in to the box with the led around 10inches away (i decided to use one storage box for height to start with). As I'm new to LEDS 10 inches seemed like a good starting point for distance - temps were fine however.. growth has been poor to say the least! Almost none existent. The below image is at 2 weeks in soil! I have done some research and it seems this may be led burn, leaves are thick, all leaves were sad and seemed to wilt (not due to over watering).
I decided to introduce a 2nd box doubling the hight to 2.5ft, i removed 2 plants and have placed them in the green house to recoup and have added a tomato with the remaining Dew into the box to test for the best hight. The tom is around 27inch away from the light and again seems to be doing poorly! Stumped!
Questions:
1. Is my grow space to small for my led? Do i need a larger area, are my plants getting to much light..
2. Do i have an led that just needs a hell of a lot of head space? (if i add another box the light will be 40inch away from plants! For a small stealth box this seems excessive!
3. Is my led faulty? They seems bright to me!
I have planted two more batches of toms today, one batch in the green house, one in the box to test growth rate from scratch.
Grateful for any advise!
Attachment 291782Attachment 291779Attachment 291778Attachment 291776Attachment 291777Attachment 291781Attachment 291780Tomthehippie Reviewed by Tomthehippie on . Progrow 180 - Grow Box - Possible LED Burn. Help! Hi all, long time no see! Just in the middle of setting up my new led grow box. The plan: to make a very small compact unit that could easily be modified. My setup uses storage boxes that can be stacked - if i run out of head room i just add another box! The environment is controlled be by two 12v temperature thermostats - one controls a 12v pc fan, the other a 12 heater. Uber simple uber cheap! The boxes can hold 84lt, I'm currently using two stacked: 1.4ft by 2.25ft by 2.5 ft cubic Rating: 5
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