Foil directly on bulbs? - Grow Room Safety - International Cannagraphic Magazine Forums

Strangely · 02-18-2011, 11:00 AM

What's the forum consensus on it?

A reflector won't work/fit with my set up due to my carbon filter (tray style) being directly above my horizontally placed bulbs (so can't hang bulbs vertically either).

What sort of issues can be encountered?

Thanks in advance for any responses!

Stress_test · 02-18-2011, 11:03 AM

It will most likely over heat the bulb and burn it out.

Sorry man without pics and measurements of your cab I wouldn't even know what to suggest.

VerdantGreen · 02-18-2011, 11:45 AM

Quote:

Originally Posted by Strangely

What sort of issues can be encountered?

fire and electrocution are two that spring to mind.

try and sort it out so you can put a proper reflector in or at least some dimpled ali on the bottom of the tray. silly to waste all that light, but even more silly to cause a hazard.

VG

blynx · 02-18-2011, 12:36 PM

You could put a strip of foil tape on the object right above the bulbs.

foomar · 02-18-2011, 07:02 PM

I would expect differential expansion and contraction on startup and shutdown to cause premature failure within a short number of cycles.

Even if it were safe practice , much of the energy would be reflected straight back to the source , mostly wasted and adding to the bulbs heat , have used a thin polished sheet of alluminium an inch above the bulb in this situation with no problems , as close as i would go with decent fan cooling.

The tape trick works well on T12 and T8 flourescents , T5,s run a little too hot i feel.

Strangely · 02-19-2011, 01:39 AM

Quote:

fire and electrocution are two that spring to mind.

Fair to say not overwhelming support!

I'll give it a miss then. Does seem a bit dodgy, I'd just seen a few doing it. Maybe I'll give a go to some strips on the filter and see if it's still drawing fine.

Cheers for te responses!

darko_G · 02-20-2011, 05:03 PM

cooltube

megatrom · 03-22-2011, 12:57 AM

ive seen these badboys, never used one, but was interested in it myself.
https://www.igrowhydro.com/Bulb-HPS-400-Chrome-Dome.aspx

03-28-2011, 09:53 PM

They sell bulbs with built in reflectors, for horizontal applications.

ganjasuiteseat · 06-08-2011, 06:06 AM

floru tubes never hid.aluminum foil had discoloration in 45 min.ahhh the greenhorn days.lol peace

02-18-2011, 11:00 AM	#1
Strangely Member Join Date: Jul 2009 Posts: 306	Foil directly on bulbs? What's the forum consensus on it? A reflector won't work/fit with my set up due to my carbon filter (tray style) being directly above my horizontally placed bulbs (so can't hang bulbs vertically either). What sort of issues can be encountered? Thanks in advance for any responses! __________________ "Life goes by pretty fast. If you don't stop and look around once in a while, and do whatever you want all the time, you could miss it."
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02-18-2011, 11:03 AM	#2
Stress_test I'm always here when I'm not someplace else Join Date: Oct 2010 Posts: 2,527	It will most likely over heat the bulb and burn it out. Sorry man without pics and measurements of your cab I wouldn't even know what to suggest. __________________ "I would. I'd really like to meet an honest man. But I'd have to lie to him cause I smoke pot." ______________________________ ______ First Outdoor Guerrilla Grow 2011 Understanding Ph. Ingenious $4 Walmart Cloner. SOG's DIY micro-cloning factory tutorial. (Very well illustrated and explained). Handy site for the Gardener (A wealth of information for any gardener). Sometimes when I'm really medicated, I can really crack me up.
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02-18-2011, 12:36 PM	#4
blynx WALSTIB Join Date: Feb 2007 Posts: 3,358	You could put a strip of foil tape on the object right above the bulbs. __________________ 1 sqft CFL Cab & other CFL micro cabs Current
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02-18-2011, 07:02 PM	#5
foomar Luddite Join Date: Nov 2006 Location: UK Posts: 3,262	I would expect differential expansion and contraction on startup and shutdown to cause premature failure within a short number of cycles. Even if it were safe practice , much of the energy would be reflected straight back to the source , mostly wasted and adding to the bulbs heat , have used a thin polished sheet of alluminium an inch above the bulb in this situation with no problems , as close as i would go with decent fan cooling. The tape trick works well on T12 and T8 flourescents , T5,s run a little too hot i feel. __________________ A fine C99 cross from Head , Geisha girls Mmmmm Blackberry meets C99 in purple and gold Black Geisha Project MBS test run , and a dash of Blackberry
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02-20-2011, 05:03 PM	#7
darko_G Member Join Date: Apr 2010 Posts: 245	cooltube __________________ whats your problem. its not like im smoking crack
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03-22-2011, 12:57 AM	#8
megatrom Member Join Date: Oct 2007 Posts: 27	ive seen these badboys, never used one, but was interested in it myself. https://www.igrowhydro.com/Bulb-HPS-400-Chrome-Dome.aspx
	Quote

03-28-2011, 09:53 PM	#9
Iron_Lion Guest Posts: n/a	They sell bulbs with built in reflectors, for horizontal applications.
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06-08-2011, 06:06 AM	#10
ganjasuiteseat universal at least Join Date: Jul 2010 Location: in the dirt Posts: 959	floru tubes never hid.aluminum foil had discoloration in 45 min.ahhh the greenhorn days.lol peace __________________ ugliving
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