Growing under Lights

Useful Life of Fluorescent Tubes

Posted by MaryMcP Zone 8b - Phx AZ 12 hours ago

Updated last Tuesday mini greenhouse lighting

Posted by danielleonfire(8) February 3, 2013 5 Comments

UV Output

Posted by zachxcastle last Monday

Updated December 24, 2016 Grow citrus under light for winter

Posted by mcschultz13 October 5, 2016 11 Comments

Updated December 23, 2016 Timer for T5H0?

Posted by TheSucculentCity December 19, 2016 4 Comments

Updated December 21, 2016 Who's using LED reflectors indoors?

Posted by rredbbeard(SE CT USA/zone 6b) December 18, 2016 3 Comments

Updated December 21, 2016 New 50 Watt grow light with integrated driver

Posted by scorpio_bafh November 4, 2016 20 Comments

Updated December 20, 2016 Basement greenhouse....

Posted by rredbbeard(SE CT USA/zone 6b) December 18, 2016 1 Comment

Updated November 30, 2016 MANGO TREE

Posted by Michael Krakofsky September 17, 2015 1 Comment

Updated November 20, 2016 T5 HO issue

Posted by StupidHotPeppers October 27, 2016 2 Comments

Updated November 9, 2016 Help with growing under lights

Posted by Amanda R October 20, 2016 5 Comments

Tropical Plants in Maine!

Posted by northernpineapple November 8, 2016

Updated November 8, 2016 Grow Spinach Indoors?

Posted by garrai818(8) October 7, 2016 2 Comments

Updated November 8, 2016 What are the Consequences of Leaving Lights on 24/7

Posted by kandm(8b coastal alabama) March 3, 2009 64 Comments

Updated November 4, 2016 Blackstar hydro ion 8

Posted by ajlegaspi May 4, 2015 9 Comments

Updated October 28, 2016 Failed LED Strip Lighting Experiment

Posted by aruzinsky April 24, 2015 12 Comments

Updated October 28, 2016 Whats the difference between 3000k and 6500k grow lights?

Posted by tlbean2004(Z7) October 27, 2016 3 Comments

Updated October 27, 2016 FYI, New Type of LED Chip for Plants

Posted by aruzinsky November 2, 2015 10 Comments

Updated October 24, 2016 Using T8HO high bay with low ceiling?

Posted by Dave(Vermont - z5a) October 15, 2016 1 Comment

Updated October 16, 2016 Bargain Alert Thread

Posted by aruzinsky February 17, 2016 22 Comments

Updated October 14, 2016 Double-ended bulbs

Posted by tom1328732(5b Omaha, Nebraska) October 12, 2016 1 Comment

Updated October 12, 2016 What height of light to use for different size plants

Posted by petuniafish October 5, 2016 2 Comments

Some arteficial light calculations

Posted by scorpio_bafh October 11, 2016

Updated October 6, 2016 Mounting really long bulbs

Posted by andyinnyc October 4, 2016 4 Comments

Updated October 4, 2016 Advice for first time grower (haworthia/gasteria). Best T8 lights?

Posted by TheSucculentCity August 8, 2016 7 Comments

Updated September 23, 2016 Post your LED light setup, veg and effective coverage!

Posted by Yuan Gong Hamilton ON CANADA 6b May 1, 2015 39 Comments

Updated September 18, 2016 Hey guys I'm back and I wrote a book!

Posted by username11313131 September 17, 2016 1 Comment

Updated September 13, 2016 Grow lights that work with my space?

Posted by Paul Henry June 7, 2016 5 Comments

Updated September 1, 2016 Advice please on lemon tree under hps grow light

Posted by Claudio Izzi August 23, 2016 2 Comments

Updated August 22, 2016 question about ventilation

Posted by Claudio Izzi August 18, 2016 1 Comment

Growing under Lights

2,198 Garden Web Discussions | Growing under Lights