| | ||||||
| General Indoor Growing If you're growing indoors, this is the forum for you. Discuss lighting, mediums, feeding, efficiency and more. |
![]() |
| | LinkBack | Thread Tools | Display Modes |
| Abyssal frequent flyer |
Most people talk about 2700k red spectrum and 6500k blue spectrum CFLs. It's really more like red-ish and blue-ish. 2700K CFLs produce some blue light too and 6500K CFLs produce some red light. This is what I use : 4000K coolwhite'wide spectrum' fluro tube : ![]() and then 'for the reds' 2700K CFLs: ![]() Its all about efficiency. The 'wide spectrum' flurotube I use does 1200 lumen/18W The narrow CFLs i use also does 1200 lumen/18W BUT, a flurotube with a similar spectrum as my CFL does 1500 lumen/18W. This is because tubes are more efficient per W then CFLs. This whole spectrum thingy has everything to do with photosynthesis. Photosynthesis requires chlorophyl which use these spectra : ![]() Do you get the picture now?
__________________ Check out my crazy fluro/HPS grows : http://forum.grasscity.com/general-indoor-growing/91096-needs-professional-assistance-flowering.html& http://forum.grasscity.com/grow-journals/102259-urgr8estfear-2nd-fluro-only-soil-grow-start-finish.html& http://forum.grasscity.com/grow-jour...soil-grow.html& http://forum.grasscity.com/grow-jour...-hps-grow.html http://forum.grasscity.com/grow-jour...ml#post2098623 http://forum.grasscity.com/grow-jour...own-seeds.html |
| |
![]() |
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | |
| Display Modes | |
| |
Similar Threads | ||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| how do i grow | HighGuy62 | Absolute Beginners | 14 | 08-05-2009 02:57 AM |
| dual spectrum lighting. opinion? | 305tillidie | General Indoor Growing | 1 | 05-03-2006 06:25 AM |
| GrowFAQ:Newbie grow guide | Jack Burton | Absolute Beginners | 5 | 10-05-2005 10:12 AM |
| Give me advice on a good lighting..... (full spectrum hps) | 777Budz | Grow Room Design/Setup | 4 | 09-30-2005 12:01 AM |
| Understanding the light spectrum please help | Ganja_Man2k5 | General Indoor Growing | 3 | 08-23-2005 07:05 AM |
© Copyright 1999-2009
Grasscity.Com
All rights reserved.