Lighting Discussion

Discuss lighting used for the cultivation of cannabis!

DIY LED Building

A forum dedicated to DIY LED building enthusiasts! Ask your questions, post your builds, and shine on!
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371
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9.4K
Threads
371
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9.4K
D
Sizing drivers, Series vs paralell - by BigSm0

Horticulture Lighting Group

Information and reviews on grow lights from Horticulture Lighting Group!
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39
Messages
3.3K
Threads
39
Messages
3.3K
elcoloan
20% OFF SITE WIDE AT HLG'S SITE - labor day discounts!

Mars Hydro

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292
Messages
20.6K
Threads
292
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20.6K
colo
MarsHydro Live Section

SANlight

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11
Messages
5.4K
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11
Messages
5.4K
St. Tom
SANlight sanlight EVO 140 and 60 series perpetual grow with biotabs Dutch passion kerosine krash sssc and seedstockers
Sticky threads
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  • Sticky
  • Poll
What's the best lighting cycle for autos - 24/0, 20/4 or 18/6
56 57 58
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571
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211K
miniclips320
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Magic
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Magic's Basic LED Guide
2 3 4
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32
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46K
maryG
maryG
MesaBoogie
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PPFD/watt Grow Light buying reference
2 3
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28
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6K
MesaBoogie
MesaBoogie
ripster
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T5/CFL only thread (the manual)
26 27 28
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270
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56K
kaaya149
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Noods
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Light and Easy Basic CFL Info
7 8 9
Replies
86
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24K
Jakob
Jakob
JM
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Grow Light Guide - Comparison HID, CFL, Incadescent, MH, HPS
2
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11
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12K
KonopCh
KonopCh
CappY
  • Sticky
Choosing the right HID lights for your growspace
2
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16
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5K
Tony
Tony
don
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CFL orientation and distance charts
2 3 4
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30
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16K
Inf3cted
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ripster
  • Sticky
CFM Calculator link and an A/C BTU Calculator
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0
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4K
ripster
ripster
Normal threads
Drownomatic
The argument for a higher light
Replies
4
Views
221
WildBill
WildBill
elcoloan
rows of diodes not turning on completelly, why?
Replies
8
Views
252
elcoloan
elcoloan
BII
What is the optimal way to use UVA supplementation with autoflowers?
2
Replies
10
Views
291
Mañ'O'Green
Mañ'O'Green
SHRED
Are my numbers close to accurate?
Replies
1
Views
315
Badfinger
Badfinger
Badfinger
Anyone with a Grow Light Science?
Replies
3
Views
325
Badfinger
Badfinger
Del boy
light vendors
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0
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76
Del boy
Del boy
BigSm0
Cobshop.net info, questions and answers
135 136 137
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1K
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121K
TrichomeAssassin
TrichomeAssassin
A
Mars Hydro FC-E6500 dimmer switch and power output issues
2
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13
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280
arquette
A
J
Are fohse led really the best?
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0
Views
78
JiMBeAnER
J
darknight_420
What wattage do you need
Replies
6
Views
154
darknight_420
darknight_420
bde6187
Tent temp vs leaf canopy temp. Help please
Replies
2
Views
184
Rasterman
Rasterman
H
Grow lights
Replies
3
Views
322
DCLXVI
DCLXVI
TheMerryDankster
Hey now! Switching lights on time mid cycle
Replies
4
Views
162
TheMerryDankster
TheMerryDankster
gqjeff
which to use to dial in DLI
2 3
Replies
23
Views
914
Delps8
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SHRED
When looking at PPFD and DLI for autos
2
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16
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1K
SHRED
SHRED
S
Watch those connectors!
Replies
2
Views
522
nomadJ
nomadJ
R Wayne
MIGRO UVB 310 fixture?
Replies
2
Views
253
R Wayne
R Wayne
SHRED
Migro Aray 4 and Aray 4 Pro?
Replies
2
Views
280
Delps8
D
SHRED
Light for a 2' x 4' tent?
2 3
Replies
29
Views
1K
Hotshot
Hotshot
SHRED
Lights on constantly
2
Replies
14
Views
599
Jackson
Jackson
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