+ Reply to Thread
Page 3 of 3 FirstFirst 123
Results 21 to 27 of 27

Thread: Finally back with a new scrubber

  1. #21
    Super Moderator
    Join Date
    Oct 2008
    Location
    Santa Monica, CA, USA
    Posts
    9,710
    Also if you can back the lights up, they will spread out more.

  2. #22

    Join Date
    Jan 2011
    Location
    Leeds, UK
    Posts
    116
    Yes I agree, they are very close and a 10w led may possibly burn the screen at that distance. I need to try and fathom out how to mount the lights, I may have to make a "beam" which runs across the top of the unit and allows the lights to hang down. It seems to be the only way to increase the distance

  3. #23

    Join Date
    Jan 2011
    Location
    Leeds, UK
    Posts
    116
    As expected, the led has proven to be far too strong and I have a big white circle on the screen. Until I can make adjustments, I am trying to diffuse the light a bit. I first started out with a bit of new canvas:



    I didn't think this would diffuse it too much, so I had a bit of a look around. I then squeezed a take away container lid in between



    Hopefully that should help the situation a bit until I can try another way of mounting the lights.

  4. #24

    Join Date
    Jan 2011
    Location
    Leeds, UK
    Posts
    116
    Some more modifications made today. I have found a way to hang the lights away from the screen. As you can see from the following pictures, the led really did burn the algae!! That said, 18g harvested today in a week, wasn't getting that before with the old lighting set up, so onwards and upwards to increased growth.



    Side 1



    Side 2

    Both lights are now about 10cm from the screen allowing for the spread of the light, hopefully it will spread enough, although there is still a "spotlight" effect. On a previous home made version, 3w leds were enough to produce great growth without burning, so 3 times the power could prove to be a bit troublesome.




  5. #25
    Super Moderator
    Join Date
    Oct 2008
    Location
    Santa Monica, CA, USA
    Posts
    9,710
    You could try putting some triangle acrylic strips on the light, to diffract the light sideways.

  6. #26

    Join Date
    Jan 2011
    Location
    Leeds, UK
    Posts
    116
    So here we go, now some results are starting to be achieved. With the light timings lowered from 18 hours per day to 13, in a week the screens have produced 30g, that's a just over 50% increase on last week. The big white burn is filling in nicely, so hopefully that will produce some good growth now, although looking for something to diffuse the main beam is still ongoing. Once the screens are filling with a decent amount, I shall increase the lighting again gradually until up to 18 hours. Still got a way to go to top my 200+g per week, but now moving in the right direction! Some wet oily growth pictures




  7. #27
    Super Moderator
    Join Date
    Oct 2008
    Location
    Santa Monica, CA, USA
    Posts
    9,710
    Yes once a growth ring has filled in, you go use more hours of light.

+ Reply to Thread
Page 3 of 3 FirstFirst 123

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts