IF you are new to LED and want help choosing what to buy, POST HERE!

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hillbill

hillbill

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Mars has the resources to produce a top quality product but they choose to make lights that they know are unreliable and inefficient. Hell, what does it cost to throw a few diodes and a "good luck" in the mail for warranty? They have access to any component at high volume discounts and still choose to make outdated inefficient lights.

The dumpster video is performance art at it's finest!
 
Diskokobaja

Diskokobaja

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omg!!! now i become mars2 fan!!! MY PIMPED CHINESE LIGHT has 5y uk warranty,its pimped by grower and in my book its same as hans panel or advance platinum led.. i will do grow here maybe i will be laughing stock, or maybe i will shut up haters, we will see... AND when i can i will buy some vero or 3070-3590 but for now my sanjong car is my driving tool.. figure of speech..
 
Snaddehat

Snaddehat

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Diskokobaja said:
omg!!! now i become mars2 fan!!! MY PIMPED CHINESE LIGHT has 5y uk warranty,its pimped by grower and in my book its same as hans panel or advance platinum led.. i will do grow here maybe i will be laughing stock, or maybe i will shut up haters, we will see... AND when i can i will buy some vero or 3070-3590 but for now my sanjong car is my driving tool.. figure of speech..
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Did you just equate Hans Panel with Mars!?
/facepalm...
 
Wisher2

Wisher2

Well-Known Member
@Diskokobaja
is that the light that you really want? Why not save more and keep using the 400....until you have enough money to get what you really want....unless that is the light you really want.....the reason I say this is because the light is not gonna cover the area you want and the technology is like buying a 720p tv and saying "well this will hold me over till I get that 4k"......but you already watch tv perfectly fine through your computer moniter.....which has a better resolution then that 720p....just save and get something that will crush that space instead of something that will just disappoint.......oh yeah and Mars has warranty to......they will guide you on where to get your panel fixed for a price
 
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P

PurpleBuz

Well-Known Member
Diskokobaja said:
as i remmeber toyota had few years earlier some technical problems , like some other high cost car brands,i dont say the mars2 is the bomb, but its not the piece of shi either..
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actually from what I gather from the mars users .... it is a piece of shit.

why ignore experienced advice ?
 
L

ledder

Member
Anyone measured the temperature of the cxb3070 leds ? I was wondering is it possible to simply tape the led to heat sink with transparent tape ? Tape over the led part.. Is this possible or just simply idiotic ?

Another question.. Is anyone made any air ventilation calculations when using leds ? I know HPS lights needs more air ventilation because of the heat, but with leds heat is not as great issue. How much is good air ventilation when using leds ? Of course fresh co2 is needed but what is good air ventilation ratio ? If my grow room is 2m³. Is 2m³/minute of air flow enough ? Or can I go with 1m³/minute ?

Thank you
 
verticalgrow

verticalgrow

Well-Known Member
ledder said:
Anyone measured the temperature of the cxb3070 leds ? I was wondering is it possible to simply tape the led to heat sink with transparent tape ? Tape over the led part.. Is this possible or just simply idiotic ?

Another question.. Is anyone made any air ventilation calculations when using leds ? I know HPS lights needs more air ventilation because of the heat, but with leds heat is not as great issue. How much is good air ventilation when using leds ? Of course fresh co2 is needed but what is good air ventilation ratio ? If my grow room is 2m³. Is 2m³/minute of air flow enough ? Or can I go with 1m³/minute ?

Thank you
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Depends on outside air temps & how many watts of lights ur trying to cool
 
Diskokobaja

Diskokobaja

Well-Known Member
Wisher2 said:
@Diskokobaja
is that the light that you really want? Why not save more and keep using the 400....until you have enough money to get what you really want....unless that is the light you really want.....the reason I say this is because the light is not gonna cover the area you want and the technology is like buying a 720p tv and saying "well this will hold me over till I get that 4k"......but you already watch tv perfectly fine through your computer moniter.....which has a better resolution then that 720p....just save and get something that will crush that space instead of something that will just disappoint.......oh yeah and Mars has warranty to......they will guide you on where to get your panel fixed for a price
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i dont have place to grow with 400w on summer, it just too hot and im using cool tube...
whats your opinion on this led??

http://www.todogrowled.com/gb/led-grow-lights/1-led-grow-light-tgl-star-60.html#/29-options-4_units
if i go with 4 units at my 100x100cm? (3,3x3,3)

@Scotch089 @Snaddehat @Big smo @The Dawg
 
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Snaddehat

Snaddehat

Well-Known Member
Diskokobaja said:
i dont have place to grow with 400w on summer, it just too hot and im using cool tube...
whats your opinion on this led??

http://www.todogrowled.com/gb/led-grow-lights/1-led-grow-light-tgl-star-60.html#/29-options-4_units
if i go with 4 units at my 100x100cm? (3,3x3,3)

@Scotch089 @Snaddehat @Big smo @The Dawg
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I don't know the company, but the lights look nice. Good parts and not crazy overpriced. I'm a little worried about the driver being placed on top of the heatsink on a passive build... Maybe someone here knows this specific heatsink, or has tried these lights?
 
Abiqua

Abiqua

Well-Known Member
ledder said:
I rephrase my question.. If I normally use 1000W HPS and now I change to 500W led. How much less air ventilation is enough ? 50% of the original ?
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whatever the room requires, might not be 50%. It will take some dialing in. Sure, ballpark at 50, but probably will need tweaking. :peace:
 
L

ledder

Member
Abiqua said:
whatever the room requires, might not be 50%. It will take some dialing in. Sure, ballpark at 50, but probably will need tweaking. :peace:
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Thank you for your answer..

Any thoughts about the tape over the led question ? Anyone ?

"I was wondering is it possible to simply tape the led (cxb3070) to heat sink with transparent tape ? Tape over the led part.. Is this possible or just simply idiotic ?"
 
Abiqua

Abiqua

Well-Known Member
ledder said:
Thank you for your answer..

Any thoughts about the tape over the led question ? Anyone ?

"I was wondering is it possible to simply tape the led (cxb3070) to heat sink with transparent tape ? Tape over the led part.. Is this possible or just simply idiotic ?"
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Kapton tape?

Do not tape over the LES surface. If you have Vero or Cree, read the freaking Datasheet!!!!! please. Do not cover it, it will melt and possibly melt to the les, probably not a good idea. Even though Kapton is rated to 350F? or something?

Kapton will hold a cob to a heatsink surface, just don't touch the LES....I have diodes being used currently with 2+ year old 10mm wide Kapton strips. If you clean everything with ISO alcohol 1st, you should eliminate most mounting errors. :peace:
 
welight

welight

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