Testing the $99 135 Watt LED - How do I replace the fan?

bukujutsu

Member
http://www.bsled.com/led-grow-light/sp110d-140w.html

That X2 is very very nice, but $185 is more than I want to spend. The promotions price, which ended February 22nd IIRC, was only $122. $158 total would have been a better price. Hopefully prices will go even lower soon, who knows how much they will drop with the advancement of technology. I think I would be willing to pay $135 total for one.


So I bought one of these instead: http://www.ebay.com/itm/135w-UFO-LED-Grow-Light-Full-spectrum-3W-Flower-LEDs-Hydroponic-grow-lamp-panel-/280994073556?pt=LH_DefaultDomain_0&hash=item416c8d4bd4

I pad $103 for it, actually, but $99 sounds much catchier. I've seen them go as low as $90.

It's very cheap, but keep in mind that resellers usually charge insane markup. Does this look similar? http://www.hydrogrowled.com/84X-PRO---120W-LED-Grow-Light-P84C60.aspx


This might be the same one, but $12 cheaper: http://www.ebay.com/itm/Pro-135W-8Band-UFO-Led-Grow-Light-Indoor-Plant-Veg-Flower-Hydroponic-Grow-Lamps-/221183294375?pt=LH_DefaultDomain_0&hash=item337f8d3ba7


Differences: The angles are 90 and 120, but I'm using a SCROG, so it won't matter. They also don't have the replaceable/upgradeable light modules, which would have been nice, but probably won't affect me, or the X2 optic lens, which concentrates the light, but is likely inferior to reducing the angle. $103 total with fast shipping is extremely cheap, though. I think it's worth the lower quality, at least depending on whether you're doing something that won't need a lot of penetration. I've seen them go for as low as $90.


Light came Friday around 2PM (California).








Seems to be the same as this, maybe with different LEDs: http://www.ebay.co.uk/itm/135W-LED-UFO-GREEN-LAMP-Grow-panel-better-than-90W-Light-Board-3W-LED-Flowering-/220895751317?pt=UK_HomeGarden_Garden_PlantsSeedsBulbs_JN&hash=item336e69ac95


It has the same hangers, which I don't like because they're too long and I'm going to use rope ratchets when they arrive (Bought from the same seller for a low price. $4 total for a pair seems to be the median.), but I just looped the carabiner over and under until it was short enough.


Seems to be what they say it is. I like it, but time will tell how it performs. It produces very little heat. My grow space is only about 7 cubic feet and made with reflectix and it hardly raises the temperature, it seems to stay around 73F. Only thing I don't like is that it's too loud.


According to my Smart Tools app: https://play.google.com/store/apps/details?id=kr.sira.sound&hl=en


The decibels are 27 from a few feet away in the same room. Maybe you could play a youtube video of a fan blowing and raise the volume until the app reads 27db to get an idea of the noise level. Here's one you could use: http://www.youtube.com/watch?v=yOtGBwMSjng


It's certainly not inline fan loud, but I definitely wouldn't want to be on the computer or sleeping in the same room as it, and it isn't suitable for a stealth grow. I may have particularly sensitive hearing, though. I've never listened to loud music, so I haven't suffered as much hearing loss as the average person, and I've always been easily annoyed by noise.


Here are the internals. Only 3 phillips head screws, easy to disassemble and put back into place.





This is the fan: http://fan-cooling.com/productshow.asp?id=72


Seems to be a standard 120mm DC PC fan. Looks pretty cheap, no wonder it's noisy. Easy to swap out. I'll need a 3 pin female to 2 pin male adapter, though.
 

bukujutsu

Member
After this grow I'm going to sell the LED and only use a small perpetual CFL setup, like DrBudGreen does: https://www.icmag.com/ic/showthread.php?t=69713

Each room will only be 1 square foot, though. 12 x 12 x 24.

I bought this LED because I have money to spare and I want to play around with it and share the results with the community. If it works well, it could future LED growers a lot of money.
 

bukujutsu

Member
I bought this adapter cable: http://www.budgetgadgets.com/female-male-power-cable-p-12287.html

And this fan: http://www.amazon.com/Enermax-T-B-SILENCE-Twister-Cooling-UCTB12N-R/dp/B0060G5724

I don't care about the LED, it was just cheaper than the PWM version.

Specs: http://www.enermax.com/home.php?fn=eng/product_a1_1_2&lv0=4&lv1=32&no=147

The input is .3 amps, so .25 should be safe, it should just run slower. I calculated that .25 is 83% of .3, so assuming a proportional drop in speed, .25amps should push 43CFM, which should be sufficient, and do so at a noise level below 14dBA, which should be near silent. The air moving in and out through the LED case should make some additional noise, but probably not that much. Some fans are just extremely noisy and don't even have a better CFM than quiet fans. Best fan I could find for the job at a low price point and with the right input power. Let's hope it works.

I found an easy replacement for the LED hangers, zip ties! My rope ratchets also came today. They look to be the exact same ones that came with a 400w cooltube setup.







Works great!
 
Top