need help on lights

twisterdude1009 · 05-03-2011, 10:34 AM

Planning on going with a green man setup and I have been trying to find Fluorescent Tube CTT Light Cool white 65 watts-100 watts and Warm White I have called my nursery's and all they carry are 10 watts. Do any of you know were to get them

Sugar420 · 05-03-2011, 10:55 AM

i dont even the question?

Roach · 05-03-2011, 04:35 PM

use 4 foot aquarium (or wide spectrum) floros...40 watts each per sq ft, minimum.

headsrnice · 05-05-2011, 02:05 PM

When comparing long tube flouros to cfl's is the wattage between a 40w tube and a 40w cfl equal? or would the cfl bulb work better than a tube?

farmergiles · 05-05-2011, 02:35 PM

The lumen output should be very similar. Have a look at the manufacturer's specs if you can find them.
Maybe tubes are better in some situations as the light is spread out along the length of the tube so is more diffused and less likely to cause burning.

headsrnice · 05-05-2011, 09:23 PM

That was my main concern. I was wondering cfl's as close as tubes without any heat stress occuring. Having them about 3-4 inches away has seemed alright so far. Since I'm planning on putting them outside when the weather gets warm enough at night I hope keeping them under the 4 100w cfls along with sunlight will be enough to keep them healthy for the next couple weeks?

farmergiles · 05-06-2011, 05:01 AM

Yeah sounds good, you might even be able to move them closer.
You can test with the back of your hand- hold it up at whatever distance from the light, if you feel any discomfort after a few minutes them this is probably too close for the plants as well, if not then fine.

headsrnice · 05-06-2011, 09:14 AM

Would signs of heat stress present themselves fairly quick?

farmergiles · 05-06-2011, 09:54 AM

Yes, you'd see the edges of the leaves curl up a little where the serrations are.

shel · 06-13-2011, 05:43 PM

you can find the T5 bulbs your looking for here:

fenderbender · 06-13-2011, 06:37 PM

100 + watt cfls are fantastic lights. You could grow them all the way through with those cfls if you wanted to.

i have some screw in 150 watt cfls for cheap off ebay and you can keep the plants just centimeters away without burns. In fact it is best to keep them as close as possible because while they output a good spectrum of light, the light doesnt travel well.

If you are talking little seedlings though then yeah a few inches away is good.

05-03-2011, 10:34 AM	#1 (permalink)
twisterdude1009 YaHookan Join Date: Apr 2011 Posts: 14 Thanks: 4 Thanked 0 Times in 0 Posts	need help on lights Planning on going with a green man setup and I have been trying to find Fluorescent Tube CTT Light Cool white 65 watts-100 watts and Warm White I have called my nursery's and all they carry are 10 watts. Do any of you know were to get them

05-03-2011, 04:35 PM	#3 (permalink)
Roach Victoria Aut Mors Join Date: Dec 1999 Posts: 7,184 Thanks: 2,372 Thanked 1,987 Times in 1,509 Posts	use 4 foot aquarium (or wide spectrum) floros...40 watts each per sq ft, minimum. __________________ לזיין את הקופים

05-05-2011, 02:35 PM	#5 (permalink)
farmergiles Yahookan Join Date: Sep 2006 Location: Sick of the hatred and the lies Posts: 7,807 Thanks: 2,285 Thanked 3,750 Times in 2,554 Posts	The lumen output should be very similar. Have a look at the manufacturer's specs if you can find them. Maybe tubes are better in some situations as the light is spread out along the length of the tube so is more diffused and less likely to cause burning. __________________ Cultivate a stoic calmness *Fuck the Monkeys* Every Kind of Vice

05-06-2011, 05:01 AM	#7 (permalink)
farmergiles Yahookan Join Date: Sep 2006 Location: Sick of the hatred and the lies Posts: 7,807 Thanks: 2,285 Thanked 3,750 Times in 2,554 Posts	Yeah sounds good, you might even be able to move them closer. You can test with the back of your hand- hold it up at whatever distance from the light, if you feel any discomfort after a few minutes them this is probably too close for the plants as well, if not then fine. __________________ Cultivate a stoic calmness *Fuck the Monkeys* Every Kind of Vice

05-06-2011, 09:54 AM	#9 (permalink)
farmergiles Yahookan Join Date: Sep 2006 Location: Sick of the hatred and the lies Posts: 7,807 Thanks: 2,285 Thanked 3,750 Times in 2,554 Posts	Yes, you'd see the edges of the leaves curl up a little where the serrations are. __________________ Cultivate a stoic calmness *Fuck the Monkeys* Every Kind of Vice

05-03-2011, 10:55 AM	#2 (permalink)
Sugar420 Freedom Bird Join Date: Mar 2002 Posts: 6,138 Thanks: 41 Thanked 183 Times in 733 Posts	i dont even the question?

05-05-2011, 02:05 PM	#4 (permalink)
headsrnice YaHookan Join Date: Jun 2010 Posts: 323 Thanks: 274 Thanked 61 Times in 46 Posts	When comparing long tube flouros to cfl's is the wattage between a 40w tube and a 40w cfl equal? or would the cfl bulb work better than a tube?

05-05-2011, 09:23 PM	#6 (permalink)
headsrnice YaHookan Join Date: Jun 2010 Posts: 323 Thanks: 274 Thanked 61 Times in 46 Posts	That was my main concern. I was wondering cfl's as close as tubes without any heat stress occuring. Having them about 3-4 inches away has seemed alright so far. Since I'm planning on putting them outside when the weather gets warm enough at night I hope keeping them under the 4 100w cfls along with sunlight will be enough to keep them healthy for the next couple weeks?

05-06-2011, 09:14 AM	#8 (permalink)
headsrnice YaHookan Join Date: Jun 2010 Posts: 323 Thanks: 274 Thanked 61 Times in 46 Posts	Would signs of heat stress present themselves fairly quick?

06-13-2011, 05:43 PM	#10 (permalink)
shel YaHookan Join Date: Apr 2010 Location: over the rainbow Posts: 40 Thanks: 10 Thanked 15 Times in 12 Posts	you can find the T5 bulbs your looking for here:

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