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Air cooled reflector testing with Digital footcandle meter

darthvapor

Active member
I would say both strawberry. but If I had to pick one over the other I would want more uniform shape. I could always increase lumens by lowering the lamp a little If I had optimum venting and atmosphere. What do you think?
 
G

Guest

An even distribution of light with no hotspots, hotspots can be a BIG problem if the light is stationary and the hot spot is intense at least until you figgure out it's a realestate (location) problem - not a different issue.

I used to think a hood was a hood, was a hood mostly but this thread has shown me the light! Pun intended!

My 1000W Hps and lightrail will be getting a new "hood" to live in, Only bad thing is - now I want 2
 
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darthvapor

Active member
heres the super sun


instead of inline cooling they put the vents on the side so they get minimal light loss. Sure its not as effective at cooling but you reflect more light to your plants.






lets see what the numbers tell us!!

SUPERSUN with glass
At 18 inches
1. 0730
2. 1540
3. 1950
4. 1550
5. 0700
6. 1700
7. 4370
8. 7320
9. 4430
10. 1410
11. 2100
12. 7680
13. 12240
14. 7490
15. 1680
16. 2050
17. 5470
18. 8410
19. 5200
20. 1560
21. 0870
22. 1810
23. 2310
24. 1780
25. 0840
average:3488


at 24 inches
1. 1180
2. 2010
3. 2610
4. 2030
5. 1130
6. 1970
7. 3800
8. 5600
9. 3840
10. 1750
11. 2290
12. 5070
13. 7030
14. 5050
15. 2020
16. 2190
17. 4350
18. 6120
19. 4320
20. 1930
21. 1470
22. 2570
23. 3080
24. 2430
25. 1300

average:3086

at 36 inches

1. 1310
2. 2060
3. 2560
4. 2130
5. 1370
6. 1690
7. 2650
8. 3400
9. 2770
10. 1690
11. 1930
12. 3050
13. 3670
14. 3070
15. 1850
16. 1910
17. 2890
18. 3610
19. 2910
20. 1780
21. 1500
22. 2200
23. 2590
24. 2110
25. 1420

average:2325

:headbange
 

pico

Active member
Veteran
Awesome!

So it looks like the Super Sun kicked the shit out of the Daystars. Very nice. That is the old Super Sun. They now sell them with end to end cooling. If I recall, they both tested fairly close.

You know what would be kinda cool on the graphs, is if the colors matched up from graph to graph.

I am slacking, need to get my ass in gear and test something.
 

clowntown

Active member
Veteran
darth, do you have a Super Sun 2 with inline cooling? Or perhaps testing the Super Sun without the reflective caps for the cooling ports? Or does the Super Sun have the reflective material at the A/C ports too?

How effective is that reflector at cooling, though? Especially with more than 1 per fan?
 
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darthvapor

Active member
The super sun 2 is next on the list to test. The super sun cooling ports are part of the formed reflector. all you can do is take off the flanges and just put square caps on them if your not going to aircool. super sun with no glass data coming soon as I get the averages calculated.
 

darthvapor

Active member
same reflector with no glass

supersun no glass

At 18 inches

1. 1000
2. 1730
3. 2170
4. 1710
5. 0850
6. 1970
7. 4900
8. 7860
9. 4610
10. 1610
11. 2180
12. 8080
13. 12480
14. 7530
15. 1820
16. 2330
17. 5760
18. 9190
19. 5650
20. 1700
21. 1000
22. 2050
23. 2630
24. 2100
25. 1000

average:3307

at 24 inches

1. 1220
2. 2090
3. 2780
4. 2020
5. 1130
6. 2180
7. 4200
8. 6270
9. 4180
10. 1860
11. 2580
12. 5810
13. 8050
14. 5600
15. 2130
16. 2480
17. 4850
18. 6980
19. 4700
20. 1960
21. 1610
22. 2640
23. 3350
24. 2620
25. 1440

average:3389

at 36 inches

1. 1390
2. 2190
3. 2780
4. 2340
5. 1510
6. 1780
7. 2770
8. 3650
9. 2940
10. 1830
11. 2000
12. 3240
13. 3910
14. 3290
15. 2080
16. 1960
17. 3040
18. 3910
19. 3170
20. 1980
21. 1560
22. 2320
23. 2780
24. 2430
25. 1600

average:2498
 

darthvapor

Active member
pico said:
Awesome!

So it looks like the Super Sun kicked the shit out of the Daystars. Very nice. That is the old Super Sun. They now sell them with end to end cooling. If I recall, they both tested fairly close.

You know what would be kinda cool on the graphs, is if the colors matched up from graph to graph.

I am slacking, need to get my ass in gear and test something.

I cant really tell just by looking at the numbers which hoods do better until I see the graphs. Those help me understand how the light is distributed over the area. I would do them myself but dont know how. I sucked at math
 
B

Brain

You got a higher average for at 24" than 18"? Does that seem wierd? Could 24" be the sweet spot?
 

BlindDate

Active member
Veteran
Darth, This is your Supersun 2 (no glass) @ 24"
9945Chart-med.jpg
 
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BlindDate

Active member
Veteran
Supersun (no glass) @24"

It's easier to see a 3D image in your head if you type it out just like the floor grid. Notice how all those numbers make sense now.

1220,2090,2780,2020,1130
2180,4200,6270,4180,1860
2580,5810,8050,5600,2130
2480,4850,6980,4700,1960
1610,2640,3350,2620,1440
 
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BlindDate

Active member
Veteran
You got a higher average for at 24" than 18"? Does that seem wierd? Could 24" be the sweet spot?
You are correct. The average is a combination of light intensity and area. If the light is too close then intensity goes way up, but only in a small area. The "sweet spot" will also change depending on the bulb wattage.
 

darthvapor

Active member
couldnt test the supersun 2 somebody bought it. Will do as soon as new one arrives. I did however get a hydrofarm radiant 8 to see how the big reflectors do in relation to the smaller ones. I noticed for pico the smaller hoods worked better in 600 wonder if 1000 are diffrent? I saw no reason to test this without glass because its meant to aircool. Hopefully nobody wants that tested. The way the glass is attached is with tabs on one side.

and thumb screws on the other.


simple to work but what if there is a canopy below it and you have to change out a bulb. I kinda like the slide out glass and I seal it with foil tape. Simple but much more effective for a nice seal. Dont want any odors escaping!!












Nice 8 inch ducting for efficient INLINE cooling.




Whats got me perplexed is
A. Is it better to loose some light and efficiently line cool with huge inline ports or
B.Indirectly cool with ports on the side of the bulb to retain maximum light refraction and use intake and exhaust plenums.

So far my plenums are kicking ass and its all 4 inch ducting connected to a 8 inch plenum. 1 fan on the exhaust side and passive intake on the other

I also cut my testing time down by 20 minutes using this ingenious invetion.


bamboo stakes are handy sometimes. I will post data shortly. thanks for the graphs peeps.
 

darthvapor

Active member
Radiant 8 with glass.
at 18 inches
1. 0510
2. 1180
3. 1710
4. 1150
5. 0500
6. 2010
7. 4800
8. 7450
9. 4180
10. 1100
11. 3060
12. 8600
13. 12950
14. 7600
15. 1550
16. 2230
17. 6100
18. 9440
19. 5570
20. 1350
21. 1080
22. 2060
23. 3050
24. 1870
25. 0830
average:3677

at 24 inches
1. 1900
2. 1770
3. 2440
4. 1720
5. 0840
6. 2300
7. 4450
8. 5910
9. 3950
10. 1630
11. 3190
12. 6250
13. 9080
14. 5910
15. 2210
16. 2690
17. 5090
18. 7220
19. 4580
20. 1900
21. 1330
22. 2380
23. 3330
24. 2230
25. 1160
average:3418

at 36 inches

1. 1360
2. 2130
3. 2900
4. 2200
5. 1350
6. 2110
7. 3110
8. 3850
9. 3930
10. 1820
11. 2320
12. 3580
13. 4690
14. 3510
15. 2080
16. 2220
17. 3420
18. 4100
19. 3080
20. 1930
21. 1750
22. 2360
23. 2820
24. 2220
25. 1520
average:2652


How do you get a thread stickied?
 

bondjamesbond

New member
i love the people that are so picky, but wont go buy a meter them self..LOL "if its not to much trouble can u test the 1987 sunsystem version 1.7, with the vents, then with out the vents, then with glass, then without glass(even tho ive never used it with out the glass), then at 10.7 inches, then 19.3 inches, then 47 inches with a 37 degree angle, with duct tape on the corners." LOL


few sugestions-

cooltubes any wattage
2 walls/corner with mylar vs. opisite 2 walls/corner NOT mylar
and that light difuser


thanks alot for the info already tho guys,keep up the good work
 
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bondjamesbond

New member
Would be Cool to Test THIS!

Would be Cool to Test THIS!

have any cool tubes users complaining about losing light in their duct seen this? just found this guy on ebay about a week ago and it seems to work pretty well to even out the light spread....im still thinkg about buying it but id figue id run it by you guys first


clear flex duct for you air cooled lights / cool tubes.....this guys adds aluminum reflectors to the tops to reflect some of the light down

here the link to the auction
clear flex duct


WOULD BE REALLY COOL TO TEST THIS

1757_1.JPG


18c9_1.JPG
 
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