Fluoro question

stoneric · 08-23-2009, 08:10 PM

I know very little about fluros, the hardware store type. I've always bought systems and didn't pay much attention to bulb description. Is a "cool white" good for seedlings? I'm using a 105w in a very small box that is well ventilated but still gets very warm. I was looking at a 65w at menards that I was thinking of trying but thought I'd check here first. Any help would be appreciated.

**v3d4** · 08-23-2009, 11:50 PM

i dont know the answer, but im sure i remember a post by sureshot about this, but my search skillz are apparently not mad enough

farmergiles · 08-24-2009, 03:17 AM

Cool white is fine for seedlings I think- more reddish light is better for flowering.

Remember that the manufacturer often lists the equivalency wattage in bold rather than the actual wattage which is in the small print somewhere.

SmokeOnTheWater · 08-24-2009, 12:54 PM

Well I picked up a floro light set up for my clones and its only 34 watts grow tubes and I have had very good responce of growth.Not really sure about the soft white tubes but keep us informed.My plants can actual touch the bulbs with no burn and I can actually hold my hands on the bulbs with no discomfort.Something to think about perhaps.I picked up these floro's at Home Depot for about $6.00 a tube in the grow light section.Good luck to ya and hope your grow yelds is more than you hoped for.

mookie · 08-24-2009, 01:41 PM

wide spectrum and aquarium lamps are ok for veg.

problem with floros is ...

intensity, and cost to get enough of it. (for the number of ballasts and fixtures and bulbs).

1 - 250 watt hps is all a body needs for a begining to end grow of at least 5 health full sized plants (however I always pinch and dwarf)

It's not just watts remember...It's light temperature (in degrees kelvin 5500-6500 = day) and intensity (lumens or candela per sg. in/ft. = area to be lit.

also I believe pot prefers a stronger light at a greater distance....(straigh t or direct light rays (more coherent).

sirsmokalot989 · 08-29-2009, 04:15 PM

^ u grow 5 plants under 250?can't be very big... I'd do one big one
Anyway Cool white I believe won't cause the plant to think it's the harvest light... Though blue is better IMO

ivan17 · 08-30-2009, 08:21 PM

im using a t5 6 bulb fixture on a god bud clone and a GHS hawaiian snow fem. seedling and a G13 Thai Super Skunk seedling and they're loving the light..i have them about 4 inches from the light and they're doing great..it doesnt give off any heat.. ecogrow.com has the light for 195.00

08-23-2009, 08:10 PM	#1 (permalink)
stoneric bougeman Join Date: Aug 2004 Posts: 3,277 Thanks: 0 Thanked 448 Times in 354 Posts	Fluoro question I know very little about fluros, the hardware store type. I've always bought systems and didn't pay much attention to bulb description. Is a "cool white" good for seedlings? I'm using a 105w in a very small box that is well ventilated but still gets very warm. I was looking at a 65w at menards that I was thinking of trying but thought I'd check here first. Any help would be appreciated.

08-23-2009, 11:50 PM	#2 (permalink)
v3d4 fool and hypocrite Join Date: Mar 2003 Location: Terrapin Station Posts: 5,329 Thanks: 76 Thanked 452 Times in 280 Posts	i dont know the answer, but im sure i remember a post by sureshot about this, but my search skillz are apparently not mad enough __________________ remember our Governor Ken Gorman

08-24-2009, 03:17 AM	#3 (permalink)
farmergiles Zombie! Join Date: Sep 2006 Location: K. Frimpong & His Cubano Fiestas Posts: 2,399 Thanks: 493 Thanked 668 Times in 468 Posts	Cool white is fine for seedlings I think- more reddish light is better for flowering. Remember that the manufacturer often lists the equivalency wattage in bold rather than the actual wattage which is in the small print somewhere. __________________ Cultivate a stoic calmness Last edited by farmergiles; 08-24-2009 at 03:22 AM.

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08-24-2009, 12:54 PM	#4 (permalink)
SmokeOnTheWater YaHookan Join Date: Aug 2009 Posts: 1 Thanks: 0 Thanked 0 Times in 0 Posts	Well I picked up a floro light set up for my clones and its only 34 watts grow tubes and I have had very good responce of growth.Not really sure about the soft white tubes but keep us informed.My plants can actual touch the bulbs with no burn and I can actually hold my hands on the bulbs with no discomfort.Something to think about perhaps.I picked up these floro's at Home Depot for about $6.00 a tube in the grow light section.Good luck to ya and hope your grow yelds is more than you hoped for.

08-24-2009, 01:41 PM	#5 (permalink)
mookie fubar Join Date: Feb 2007 Posts: 839 Thanks: 14 Thanked 20 Times in 16 Posts	wide spectrum and aquarium lamps are ok for veg. problem with floros is ... intensity, and cost to get enough of it. (for the number of ballasts and fixtures and bulbs). 1 - 250 watt hps is all a body needs for a begining to end grow of at least 5 health full sized plants (however I always pinch and dwarf) It's not just watts remember...It's light temperature (in degrees kelvin 5500-6500 = day) and intensity (lumens or candela per sg. in/ft. = area to be lit. also I believe pot prefers a stronger light at a greater distance....(straigh t or direct light rays (more coherent).

08-29-2009, 04:15 PM	#6 (permalink)
sirsmokalot989 YaHookan Join Date: Sep 2008 Posts: 233 Thanks: 177 Thanked 93 Times in 69 Posts	^ u grow 5 plants under 250?can't be very big... I'd do one big one Anyway Cool white I believe won't cause the plant to think it's the harvest light... Though blue is better IMO

08-30-2009, 08:21 PM	#7 (permalink)
ivan17 mexicogrow Join Date: Aug 2009 Location: the village Posts: 33 Thanks: 6 Thanked 20 Times in 16 Posts	im using a t5 6 bulb fixture on a god bud clone and a GHS hawaiian snow fem. seedling and a G13 Thai Super Skunk seedling and they're loving the light..i have them about 4 inches from the light and they're doing great..it doesnt give off any heat.. ecogrow.com has the light for 195.00

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