Guest cowardlycustard Posted January 21, 2016 Share Posted January 21, 2016 hi, i have a small 60x60x140 black orchid that i'm lighting with a second or third gen two colour 120w led fixture. and i was wondering what would be the best distance to have the lights above the girls for best effect. i have plenty of experience with HID lamps but not with LED so any observations or comments would be helpful. Link to comment Share on other sites More sharing options...
Guest Posted January 21, 2016 Share Posted January 21, 2016 I was looking into led yesterday as I fancy experimenting at some point. From what I picked up it depends on so stuff. They have different degrees of light coverage. I saw a diagram showing that you have your lights closer for bloom. Not particularly useful info, sorry man. FWIW I was reading some good info on the spectrum king website. Sure you'll find it with Google. Don't know if it's cool to post a link so I'm playing it safe. Some good FAQ on there tho. Link to comment Share on other sites More sharing options...
Guest cowardlycustard Posted January 21, 2016 Share Posted January 21, 2016 thanks,when i can work out how to i'll post a picture of what i'm trying to light. Link to comment Share on other sites More sharing options...
Guest Posted January 21, 2016 Share Posted January 21, 2016 (edited) You say 2 colour led,would this be blue and red? Do you know what the led are driven at.?. If you have a pic the would help see what light it is.. If it an older one prob 12inch /18inch minimum.. I would not use spectrum kings advice as you light is totally different type. Edited January 21, 2016 by Arthur Mix Link to comment Share on other sites More sharing options...
Guest cowardlycustard Posted January 21, 2016 Share Posted January 21, 2016 thanks, its donkeys years old. came with no papers or name or specs. its got a sticker that says 125w, 0.8amps. ive got it set at 12 inches now. tried to take a photo but the camera goes bananas. i think its a 660 red and 440 blue but its been so long since i had it i cant really remember accurately. Link to comment Share on other sites More sharing options...
Guest cowardlycustard Posted January 21, 2016 Share Posted January 21, 2016 (edited) the lamp itself is rectangular and white with three fans in the top Edited January 21, 2016 by cowardlycustard Link to comment Share on other sites More sharing options...
Guest cowardlycustard Posted January 21, 2016 Share Posted January 21, 2016 just found this whilst looking for more information. https://cpl.usu.edu/htm/publications/publication=14809 Link to comment Share on other sites More sharing options...
Greenfinger53 Posted January 21, 2016 Share Posted January 21, 2016 With my 50w LED cobs I would get the leaves burning when it got down to 5-6inches. Go by the back of your hand, if it feels hot then it's too close Link to comment Share on other sites More sharing options...
Guest cowardlycustard Posted January 22, 2016 Share Posted January 22, 2016 @@Greenfinger53 i can get my hand inches under the fixture and still no heat. its set at eight inches now. just gonna leave it now and see how shes looking in a few days. Link to comment Share on other sites More sharing options...
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