COB reflectors

Say.... i have the angelina cob reflectors...and i used them for a couple runs...

Does anybody else use them or nah?

Gquebed said:

Say.... i have the angelina cob reflectors...and i used them for a couple runs...

Does anybody else use them or nah?

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i was actually gonna post the same question. good timing!

i built a 3 cob light w/o reflectors. was curious if they make a big diff or not?

My thoughts on reflectors are that if you have good reflectivity in your space don't bother. If you don't then they may have some benefit in directing the light at more focused angles towards the canopy..

Edit: I don't bother with them because every surface in my room including the ceilings is a reflective surface.

Not in a tent if that's your set up.

GroErr said:

My thoughts on reflectors are that if you have good reflectivity in your space don't bother. If you don't then they may have some benefit in directing the light at more focused angles towards the canopy..

Edit: I don't bother with them because every surface in my room including the ceilings is a reflective surface.

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Kcbscrogger said:

Not in a tent if that's your set up.

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what about walls painted white? would it be worth it to go with mylar or something else or is white paint close enough?

I made my own tent with the black/white poly...or panda film some call it.

So i was thinking of ditching the reflectors cause ive got plenty of reflection...

rkymtnman said:

what about walls painted white? would it be worth it to go with mylar or something else or is white paint close enough?

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Not a lot of difference between flat white paint and mylar (there's charts out there, you're talking a difference of say 3-4% reflectivity between them). As long as it's reflective and around all sides of the grow area, whatever works better for you will work fine.

rkymtnman said:

what about walls painted white? would it be worth it to go with mylar or something else or is white paint close enough?

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My understanding is if you've got a large canopy and you want more penetration you can use them but I have a tent set up and a flat white room set up and they both work well.

rkymtnman said:

what about walls painted white? would it be worth it to go with mylar or something else or is white paint close enough?

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n


Flat white paint will kill mylar hands down, mylar is only within 3-4% if it is perfect without folds and bends [i.e. not stapled]. It needs to be glued down and smoothed out to be anywhere near effective and why waste all that time.....when white flat or even white flat with a little more titanium dioxide mixed int [have to ask, they will do it though]....
Panda plastic is great for covering white without paint. Anyhoo, pretty basic 1st run stuff.
Mylar has no place in the grow room imho, its really just a lazy solution from newbs.....Even the the thick stuff that is commercially viable is crazy expensive and flat white paint will still provide about the same. You can get "safer" environmentally paint as well with lower VOC's if you look around, for those with that concern.

Using reflectors isn't going to hurt light levels, but I agree they aren't necessary in reflective areas.