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Search: Posts Made By: natethebrown
Forum: Lighting 02-05-19, 06:35 AM
Replies: 26
Views: 39,577
Posted By natethebrown
LED Grow Light Version 1.1

Well I was one of those "lucky" feds who got a 35 day paid vacation and had plenty of free time to get around to upgrading my LED grow light. I added the 4 additional COBs and drivers then tidied...
Forum: Lighting 12-11-17, 07:24 AM
Replies: 26
Views: 39,577
Posted By natethebrown
Yeah, those pot heads really know their...

Yeah, those pot heads really know their technology and have really pushed the grow-light market technology development! I think it would depend on a few different circumstances if I was to agree...
Forum: Lighting 07-01-17, 08:58 AM
Replies: 26
Views: 39,577
Posted By natethebrown
Here are a couple of top down views. The first...

Here are a couple of top down views. The first one is plants from under the growlight. The second are sun grown plants. Note, they were started at different times, so a comparison between...
Forum: Lighting 06-30-17, 09:22 PM
Replies: 26
Views: 39,577
Posted By natethebrown
I started my grow lamp experiment on June 20th. ...

I started my grow lamp experiment on June 20th. This time I used Roma, Rio Grande, Brandywine, and Kale seeds (all I had left).

So, I go out of town Tuesday morning, leaving the wife back to take...
Forum: Lighting 06-21-17, 05:13 AM
Replies: 26
Views: 39,577
Posted By natethebrown
And the latest picture as of last night: ...

And the latest picture as of last night:
http://i78.photobucket.com/albums/j110/natethebrown/IMG_3120.jpg

Any guesses as to which one was my original soil?

Anyways, right now I would say...
Forum: Lighting 06-19-17, 02:43 PM
Replies: 26
Views: 39,577
Posted By natethebrown
Glad I could help. It is crazy how quickly...

Glad I could help. It is crazy how quickly technology has transformed. Even though I did this project earlier this year, these LED COBs are old technology. If I was to build this grow light again,...
Forum: Lighting 06-17-17, 07:50 AM
Replies: 26
Views: 39,577
Posted By natethebrown
Not all soils are created equally!

So, after a long delay I have finally gotten around to seeing what went wrong with my seedlings this year. I came up with 3 possible variables that caused all of my seedlings to fail:
1) Not...
Forum: Lighting 04-06-17, 07:13 AM
Replies: 26
Views: 39,577
Posted By natethebrown
To be honest, not great. Nearly all of my...

To be honest, not great. Nearly all of my seedlings still do not have their true leaves yet. Contrast that with my cucumbers and green beans I directly sowed in my garden only 20 days ago, they are...
Forum: Lighting 03-08-17, 10:45 AM
Replies: 26
Views: 39,577
Posted By natethebrown
So far, things are looking pretty good. ...

So far, things are looking pretty good.

http://i78.photobucket.com/albums/j110/natethebrown/2017%20Garden/all_growth_3_7_17.jpg

As of right now, the grow light sits about 4" above the tallest...
Forum: Lighting 03-06-17, 08:15 AM
Replies: 26
Views: 39,577
Posted By natethebrown
Here is my initial setup. Only 1 LED COB hooked...

Here is my initial setup. Only 1 LED COB hooked up to power and approx. 10" above the top of the seedling pots.
...
Forum: Lighting 02-24-17, 06:46 AM
Replies: 26
Views: 39,577
Posted By natethebrown
I looked at the drivers last night. They do have...

I looked at the drivers last night. They do have the 4115 chip on them, and the DIM pin (pin 8) is not connected. I ordered a cheap 250k pot from Ebay, for a $1.50. Once I get it, I will...
Forum: Lighting 02-23-17, 01:19 PM
Replies: 26
Views: 39,577
Posted By natethebrown
Fascinating! I think I am going to see if I can...

Fascinating! I think I am going to see if I can hack one of the boards and add a pot on it.

As for updates, here is the finished product:
...
Forum: Lighting 02-22-17, 01:29 PM
Replies: 26
Views: 39,577
Posted By natethebrown
Again, good to know about the color spectrum. I...

Again, good to know about the color spectrum. I have a suspicion that I will have too much light intensity, but I figured it is a lot easier to unplug LED COBs than it is to take the whole setup...
Forum: Lighting 02-21-17, 11:37 AM
Replies: 26
Views: 39,577
Posted By natethebrown
On average, how long do CFLs last....maybe 3...

On average, how long do CFLs last....maybe 3 years of heavy use? A 60W CFL grow light (equivalent to 250W) costs about $11. From what I have seen, the lifespan of a CFL is a maximum of about 15,000...
Forum: Lighting 02-21-17, 09:38 AM
Replies: 26
Views: 39,577
Posted By natethebrown
LED Grow Light

Last year's garden had a lot of problems, including an inadequate seedling grow light. Last year, my seedlings were really leggy and weren’t developing very well. I was forced to put them outside...
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