CobKits
Well-Known Member
my local hydro store has old hoods on the clearance rack for $10 every time im there
Quantum Boards LED Plug n Play HID Duct cooled retrofit Kit
- Thread starter robincnn
- Start date
Stephenj37826
Well-Known Member
Look at the cost of most leds that have this much output. Let alone at this efficiency...... You have to run 1825s at 50-60 watts each to get to these numbers. The question is can you DIY a light more efficient for much less? Simple answer no. sure if you play your cards right you might get by saving 75-100 bucks.
Evil-Mobo
Well-Known Member
So how would this compare to 600 watts of 3590's @75watts each?
Stephenj37826
Well-Known Member
It would be 25 lumens per watt more efficient. It would pull 90-100 watts less and still produce more light.
Evil-Mobo
Well-Known Member
Wow interesting.............will have to add up the cost and compare to the DIY cob light.
The SCROG guys should be all over these boards you can get so much closer to the canopy and less heat issues at least that what it seems like from the information I have read.
I haven't stated it before but my 600 watt light with the pin sinks is dumping a good amount of heat into my tent. It's cooler to work on the HPS side lol......
Stephenj37826
Well-Known Member
Yeah and in the reflector is just as intense as a 1000 watt hps. Whatever that's worth lol.
ChaosHunter
Well-Known Member
I like it, I know for a fact I can take a QB and replace the LED board of my Mars Hydro 600 and its a direct fit. There are so many ways these boards can be utilized.
Evil-Mobo
Well-Known Member
I'm.gonna have to run one of these against the hps and the cobs next go around. Now I want to move sooner lol.
ChaosHunter
Well-Known Member
This is my intention with my 2 board setup in a 2x2
ChaosHunter
Well-Known Member
Cabnet growers who have a limited celling height can move the driver outside of the grow space. You cant imagine how thin of a profile these are.
Yodaweed
Well-Known Member
No it is not, intensity is not a cumulative quantity, it's a quantity determined by the initial value of a single point object divided by the distances . You don't add all the diodes together to get a value, you would want to hang that 10-12 inches from canopy, 1000w hps should be hung 24+ inches.
https://www.intl-lighttech.com/support/calculators/inverse-square-law-of-light-calculator
Example: You measure 10.0 lm/m² from a light bulb at 1.0 meter. What will the flux density be at half the distance?
Solution:
E1=(d1/d2)²*E2
E0.5 m=(1.0/0.5)²*10.0 = 40 lm/m²
This is one of the biggest problems with LEDs, people just make up claims out of no where, no quantum board will have the intensity a 1000w hps will have, i seen that guy with the next light have his plants within a few inches, no way you can do that with a HPS. It might grow more weed than a HPS if you scrog or have your plant canopy trained well so distance to light won't be an issue, the only way to get this thing to be more intense is with optics, and then you make hot spots.
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CobKits
Well-Known Member
Yodaweed
Well-Known Member
What's your source for this info?
Stephenj37826
Well-Known Member
So now you are telling me that the par meter was lying to me right there in the store huh. The owner took the the readings at the canopy level which was 3' away. Look at my previous statements about it. Please stop already like I said before someone believes you...... I'll leave you with this. A 1000 watt bulb is a 360° device so only 90° or roughly 25% of the light is direct and the rest is bounced off the reflector making 75% of the light not point source so how is it more intense again?
I'll make a video next week so you can see it live for your own two eyes.
This is very different from a next light. #1 540 watts from basically 4sq feet vs nextlight 650 watts and 9 sq ft. #2 a hps can't be ran closer because of the intensity of the infra red heat that isn't present in LED.
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Stephenj37826
Well-Known Member
I'll be shipping week after next. Out of town doing greenhouse install next week.
Thanks for the kind words. I wouldn't go so far as to say that but I do think the design will have its spot in the market.
Yodaweed
Well-Known Member
What law are you quoting for this? Unlike you i don't just say physics i show the actual proven laws of physics i used. I would like to know an actual factual source you learned this info from and not your opinion.
Yodaweed
Well-Known Member
This is your opinion , you have not cited any actual physics just your own opinion. and you can run HID lights closer if you air condition the area, but at a certain put they will bleach your plants, it has happened to me has nothing at all to do with inferred , you guys are grasping at straws and have no factual information or cited sources you just blab out your opinion with nothing to back it up. I have cited actual laws of physics to back me up and websites to cite my sources.