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PurpleBuz

Well-Known Member
disengaged said:
the Chinese cobs that I am familiar with burn out all the time, most in a year or less. I know I have a pile of Chinese cpb lights being recycled for parts. They belong in the garbage bin. </quote>

I just finished my single $21 30W blurple chinese COB / driver combo a few minutes ago - does it take the driver out when the COB fails? It's not like I'm going to order a six pack of backup COB's but might order a spare... but no need if it kills the driver.
Click to expand...
sorry but I just tried to tell you nicely that they are probably crap and you should probably ditch them,
but who knows ?

when they burn out they could effect the driver or your electrical circuits just like any other led that burns out.
when I was running the cob multispectrum Chinese lights, they would trip my surge protectors and my gfci's when the chips started failing. Really annoying to see a whole circuit go out because of a failing light
 
Airwalker16

Airwalker16

Well-Known Member
disengaged said:
<quote>the Chinese cobs that I am familiar with burn out all the time, most in a year or less. I know I have a pile of Chinese cpb lights being recycled for parts. They belong in the garbage bin. </quote>

ok, haven't figured the quote thing out...

I just finished my single $21 30W blurple chinese COB / driver combo a few minutes ago - does it take the driver out when the COB fails? It's not like I'm going to order a six pack of backup COB's but might order a spare... but no need if it kills the driver.
Click to expand...
Pic?
 
disengaged

disengaged

Member
wow, in time I wrote this there was the awesome 4,000 cob grow a few posts up. Nice stuff, sorry to follow with this garbage!
I'm aware most stuff made in china is crap. No need for saying sorry!
Pic of china COB mounted to solid copper heatsink with heatpipes. Note I don't have a fuse, not sure what to use. Blurry, but my first COB. It took almost 10 seconds for the solder to flow which had me worried. Maybe I will pick up some flux before trying the Vero's (4K color :) )

Trying to figure spacing for the Vero's for a 2x3 footprint. The china cob will be in the middle.
For my main string, consisting of 4x vero 29's on an HLG ... 1050mA driver I have voltage leftover I was hoping to use to run blue LED's. As far as I know that's the high end for current on blue LED's. Just do the math and add up the voltage to see how many I can use or is it too risky to the string?

Maybe I'll add a 5th Vero at some point but it will take a complete rebuild of the panel I'm putting together. Originally I had thought of putting CPU coolers on top of a 1/4" plate, but since each cooler is supposed to cool an 85W processor I thought I would use a piece of scrap 1/8"x 5 x 27 aluminum sheet, then cut holes so the base of the heatsink is exposed through the sheet, screw the heatsinks to the 1/8" Al plate + thermal grease for a little extra dissipation...
Yesterday I cleaned up on scrap, already mentioned in another thread. $20 cash I picked up 25 heatsinks + 2x 140mm fans + 2x 20V 6.5A notebook power supplies (what to do with the power supplies?) and since I have 20 extra CPU coolers, use thermal epoxy to attach as many as possible top of the aluminum sheet...
The red arrow points to the heatsink type I am considering mounting the Vero's to. They have the largest base + mass.

Here are a few on top of the aluminum sheet, not showing the ones with heat pipes because they probably need better ventilation. I wouldn't actually arrange them in this order because the fin orientation may not work well for convection... plus consider I may need the 140mm fan gently blowing on the panel.
Again, no fuse in line and I don't have a potentiometer for the Mean Well, locally the pots are rated to 1A. Maybe do a PWM. I'll probably PWM for the fan speed, starting at 12V.
Got to get out and pick up some #4 screws, seed starting plugs, etc... Maybe even finish this today? Unlikely, but will give it a shot.
 
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PurpleBuz

Well-Known Member
disengaged said:
wow, in time I wrote this there was the awesome 4,000 cob grow a few posts up. Nice stuff, sorry to follow with this garbage!
I'm aware most stuff made in china is crap. No need for saying sorry!
Pic of china COB mounted to solid copper heatsink with heatpipes. Note I don't have a fuse, not sure what to use. Blurry, but my first COB. It took almost 10 seconds for the solder to flow which had me worried. Maybe I will pick up some flux before trying the Vero's (4K color :) )

Trying to figure spacing for the Vero's for a 2x3 footprint. The china cob will be in the middle.
For my main string, consisting of 4x vero 29's on an HLG ... 1050mA driver I have voltage leftover I was hoping to use to run blue LED's. As far as I know that's the high end for current on blue LED's. Just do the math and add up the voltage to see how many I can use or is it too risky to the string?

Maybe I'll add a 5th Vero at some point but it will take a complete rebuild of the panel I'm putting together. Originally I had thought of putting CPU coolers on top of a 1/4" plate, but since each cooler is supposed to cool an 85W processor I thought I would use a piece of scrap 1/8"x 5 x 27 aluminum sheet, then cut holes so the base of the heatsink is exposed through the sheet, screw the heatsinks to the 1/8" Al plate + thermal grease for a little extra dissipation...
Yesterday I cleaned up on scrap, already mentioned in another thread. $20 cash I picked up 25 heatsinks + 2x 140mm fans + 2x 20V 6.5A notebook power supplies (what to do with the power supplies?) and since I have 20 extra CPU coolers, use thermal epoxy to attach as many as possible top of the aluminum sheet...
The red arrow points to the heatsink type I am considering mounting the Vero's to. They have the largest base + mass.

Here are a few on top of the aluminum sheet, not showing the ones with heat pipes because they probably need better ventilation. I wouldn't actually arrange them in this order because the fin orientation may not work well for convection... plus consider I may need the 140mm fan gently blowing on the panel.
Again, no fuse in line and I don't have a potentiometer for the Mean Well, locally the pots are rated to 1A. Maybe do a PWM. I'll probably PWM for the fan speed, starting at 12V.
Got to get out and pick up some #4 screws, seed starting plugs, etc... Maybe even finish this today? Unlikely, but will give it a shot.
Click to expand...
are you going to use all those heatsinks on the alum plate ? looks like a D-Day attack, balls to the walls!
 
disengaged

disengaged

Member
That's the idea, I suppose I could use u channel and put them on the sides as well?
For solder, I think I'm using 0.030 , Kester with 37 / whatever with rosin core.
May have missed my chance to get a larger sheet... ah well, would have cost money... but I have some bar stock and angle, so could add extensions to the sides. Not going for purty.
 
tinytocker

tinytocker

Member
So does anyone have any experience with mars hydro as the cree stuff is way to expensive. I found this will post the spec it's for 2 plants.

  • LED Power: 60×5W=300W
  • LED Type: 60 x 5W Epistar LEDs
  • Power consumption:: 110V: 133W±5%/220V: 129W±5%
  • Amp
    110V: 1.096A/220V: 0.591A
  • Working Voltage: AC85V-265V
  • Operating Temperature-20℃~40℃(4℉~104℉)
  • Spectrum(5 Bands)
    White

    430~440nm,450~475nm

    620~630nm,650~670nm
  • Lumen
    110V: 4377lumen 220V: 4281lumen
  • Noise Level: 56DB
  • Coverage Area
    Veg/Growth: 2×2ft

    Bloom/Flower: 1.5×1.5ft
  • View Angle: 90°/120° Mixed
  • Product Dimensions: 300×200×70mm(L/W/H)
  • Packing Dimensions: 400×270×140mm(L/W/H)
  • Net Weight: 2.53KG
  • Gross Weight: 3.27KG
  • Lifespan: 50,000-100,000hours
  • Color: White Only
 
KarmaPaymentPlan

KarmaPaymentPlan

Well-Known Member
tinytocker said:
So does anyone have any experience with mars hydro as the cree stuff is way to expensive. I found this will post the spec it's for 2 plants.

  • LED Power: 60×5W=300W
  • LED Type: 60 x 5W Epistar LEDs
  • Power consumption:: 110V: 133W±5%/220V: 129W±5%
  • Amp
    110V: 1.096A/220V: 0.591A
  • Working Voltage: AC85V-265V
  • Operating Temperature-20℃~40℃(4℉~104℉)
  • Spectrum(5 Bands)
    White

    430~440nm,450~475nm

    620~630nm,650~670nm
  • Lumen
    110V: 4377lumen 220V: 4281lumen
  • Noise Level: 56DB
  • Coverage Area
    Veg/Growth: 2×2ft

    Bloom/Flower: 1.5×1.5ft
  • View Angle: 90°/120° Mixed
  • Product Dimensions: 300×200×70mm(L/W/H)
  • Packing Dimensions: 400×270×140mm(L/W/H)
  • Net Weight: 2.53KG
  • Gross Weight: 3.27KG
  • Lifespan: 50,000-100,000hours
  • Color: White Only
Click to expand...
http://rollitup.org/t/mars-hydro.886997/

http://rollitup.org/t/marshydro-and-there-reps-on-these-sites-cover-up-artist.886107/
have you ever tried the search engine?
 
REALSTYLES

REALSTYLES

Well-Known Member
tinytocker said:
So does anyone have any experience with mars hydro as the cree stuff is way to expensive. I found this will post the spec it's for 2 plants.

  • LED Power: 60×5W=300W
  • LED Type: 60 x 5W Epistar LEDs
  • Power consumption:: 110V: 133W±5%/220V: 129W±5%
  • Amp
    110V: 1.096A/220V: 0.591A
  • Working Voltage: AC85V-265V
  • Operating Temperature-20℃~40℃(4℉~104℉)
  • Spectrum(5 Bands)
    White

    430~440nm,450~475nm

    620~630nm,650~670nm
  • Lumen
    110V: 4377lumen 220V: 4281lumen
  • Noise Level: 56DB
  • Coverage Area
    Veg/Growth: 2×2ft

    Bloom/Flower: 1.5×1.5ft
  • View Angle: 90°/120° Mixed
  • Product Dimensions: 300×200×70mm(L/W/H)
  • Packing Dimensions: 400×270×140mm(L/W/H)
  • Net Weight: 2.53KG
  • Gross Weight: 3.27KG
  • Lifespan: 50,000-100,000hours
  • Color: White Only
Click to expand...
The Mars Pro is a joke with poor efficiency and a shitty warranty try getting your light fixed I had a Mars II 900w that I smashed because they didn't have a repair center and they sent me diodes for me to fix or I could send to a repair center and those fucking lights weigh a ton lol

 
AllDayToker

AllDayToker

Well-Known Member
REALSTYLES said:
Lol I guess we thought the same thing. Have you seen what Cree they are using? I spoke with Supra and asked him what bin their using because they posted it on their site and Supra said they are using very low bin like there 11 bins behind lol
Click to expand...
That video is hilarious.

Yeah no lie they are trying to cheat us with low bin leds. Ever wonder why they were so cheap? Haha

Did my DIY led for $700. Perfectly made for my 6' by 2' area for flowering. 8x cxb3070s ran at 50w each. Don't know the math but I think it's around 55% efficiency. Which does circles around production models like Mars that around pulling 20 some percent
 
REALSTYLES

REALSTYLES

Well-Known Member
tinytocker said:
So anything at a price range of £100 you recommend thanks the helpful advice
Click to expand...
I'd say make a light like a lot of have. I don't know your growing space or what you are trying to do. Can you please be more specific? But you'll need about £200 -250 just me guessing without that info. £100 you'll get nothing but crap.
 
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