are reflectors necessary if ?
- Thread starter armand
- Start date
mockingbird131313
Well-Known Member
Light engineers say that flat white paint and reflectors can almost double the apparent light in a room. So reflectors are good if you can do it.
ganjagoddess
Well-Known Member
Yes because even if the ceailing is covered in mylar, you want to as much as possible direct the light straight down as much as humanly possible.
Hitting the ceailing out of the top of the bulb then down wards will kill the Intensity of the light.
You can very easily make a reflector if you need.
Or the make self reflected light bulbs.
Hitting the ceailing out of the top of the bulb then down wards will kill the Intensity of the light.
You can very easily make a reflector if you need.
Or the make self reflected light bulbs.
iloveganja
Active Member
Ironically I am studying for a materials exam right now.
The mylar will absorb and reflect the light.
The reflectivity, R = Intensity reflected/initial intensity = (n-1/n+1)^2 where n is the refraction index of mylar.
Thanks for helping me study
ganjagoddess
Well-Known Member
mylar is 97% reflective.
Last edited:
On3Tim3OnLy
Well-Known Member
ganjagoddess
Well-Known Member
Bad with heat spots if there is even a single crinkle in it.
Also Semi transparent.
And you have to use tape to secure them into place cause they tear like its nobodys business.
toolage
Well-Known Member
it is true they rip easily, never really had a problem with heat spots and mine have some crinkles in it. My plants are less then an inch away from it. Wasn't really suggesting that it was as good as mylar, just saying if he can't get his hands on mylar at a store near him, theres just as cheap of an alternative.
On3Tim3OnLy
Well-Known Member
i used white paint now best so far in my view
ganjagoddess
Well-Known Member
Wordum, just listing thier faults.
You grow with CFL though right?
You grow with CFL though right?
On3Tim3OnLy
Well-Known Member
LOL both now .. .clfs for veg and hps for flowering
toolage
Well-Known Member
no doubt they def have their faults. Mine have ripped a couple of times but they work pretty well if you put them around cardboard and staple it to the wall *good suggestion from kochab*.
I grow CFL with veg and HPS for flowering.
ganjagoddess
Well-Known Member
toolage
Well-Known Member
haha he deserves all the rep in the world You can find him in my journal along with tons of other places here
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