Parabolic shades

Newgrow31

Active Member
I'm currently running a 600w hps with a standard shade in a 120x120x180 but I feel it doesn't stretch to the corners
Would using a parabolic shade work. How whould the heat be is it hotter than a standard a wing type
 

Star Dog

Well-Known Member
They run the same temperature but the heat is radiated above the canopy rather than directly into it so height is less a problem and you can get it closer than a horizontal fixture, you get a better light spread my farthest plants are respectable enough.

It's something I wouldn't be without, check out the Secret jardin daisy reflector, a mylar 98% reflectivity lightweight parabolic £35 for a 60cm and £58 for the 1mtr.
I've the 60cm it weighs about 1lb my metal 1mtr is around 7/8lbs
 

cannabineer

Ursus marijanus
I'm currently running a 600w hps with a standard shade in a 120x120x180 but I feel it doesn't stretch to the corners
Would using a parabolic shade work. How whould the heat be is it hotter than a standard a wing type
Parabolic is ok only for a circular beam. But to work a square space you need something made for it. I’m not up on specific products.
 

Star Dog

Well-Known Member
_20200924_143735.JPG
My square space does better than average.
Eta...
I'm in the process of cropping so you can see the buds at the farthest point from the light.
_20201127_003108.JPG
600w +10%, 5x5 tent.
 
Last edited:

megamouthuk

Active Member
They run the same temperature but the heat is radiated above the canopy rather than directly into it so height is less a problem and you can get it closer than a horizontal fixture, you get a better light spread my farthest plants are respectable enough.

It's something I wouldn't be without, check out the Secret jardin daisy reflector, a mylar 98% reflectivity lightweight parabolic £35 for a 60cm and £58 for the 1mtr.
I've the 60cm it weighs about 1lb my metal 1mtr is around 7/8lbs
i always used to use parabolics the big metal ones with a million nuts and bolts, then i got the secret jardin lightweight ones x two, problem i had was air movement with oscillating fan caused both to twist slightly causing both live wires internally to eventually break and short out good job i was using RCD devices on both and 3amp fuses or my house would have been in flames, bad design especially with only one hanging hook so you cannot stop them twisting under any air movement very unlike metal paras which have two hanging hooks.
megamouth
 

Star Dog

Well-Known Member
i always used to use parabolics the big metal ones with a million nuts and bolts, then i got the secret jardin lightweight ones x two, problem i had was air movement with oscillating fan caused both to twist slightly causing both live wires internally to eventually break and short out good job i was using RCD devices on both and 3amp fuses or my house would have been in flames, bad design especially with only one hanging hook so you cannot stop them twisting under any air movement very unlike metal paras which have two hanging hooks.
megamouth
Thanks for the heads up buddy, I have the small one I sometimes use in a 1x1mtr tent with only a 6" fan but I'll keep an eye on it.
 

megamouthuk

Active Member
Nah I switched to dutch barns, may use them again as i fixed them rewired them both, i am a welder/fabricator so not an issue to sort out if required.
Cheers for advice anyway Star Dog.
Megamouth
 
Top