DIY with Quantum Boards

Stephenj37826

Stephenj37826

Well-Known Member
I have a question. Let's say I have 2 boards 1 in 3k and the other in 5k...... If I place enough LEDs on each respective board to achieve a theoretical efficiency of 2.7 umol/j will they run the same temperature at the same wattage ? If not why?
 
pop22

pop22

Well-Known Member
I would suspect they'd run at different temperatures due to having different coatings on the LED, but that's just a guess.

Stephenj37826 said:
I have a question. Let's say I have 2 boards 1 in 3k and the other in 5k...... If I place enough LEDs on each respective board to achieve a theoretical efficiency of 2.7 umol/j will they run the same temperature at the same wattage ? If not why?
Click to expand...
 
ianc4990

ianc4990

Well-Known Member
Stephenj37826 said:
I have a question. Let's say I have 2 boards 1 in 3k and the other in 5k...... If I place enough LEDs on each respective board to achieve a theoretical efficiency of 2.7 umol/j will they run the same temperature at the same wattage ? If not why?
Click to expand...
If they are both driven at the same wattage and have the same efficiency, they would have to put the same heat out correct? Like each individual diode may differ between the spectrum, but total (making all 2.7 umol/j) would mean both boards would be the same temp with a different amount of diodes.
 
GrassBurner

GrassBurner

Well-Known Member
Hey hows it going. I just purchased a qb 288 b-spec for my veg cabinet. The cabinet is 2'x4'x4', but I'm thinking of splitting it up into a 2x2 veg cabinet, and a 2x2 cabinet for my supplies and tools. I havent been able to find much information on HLG's website specifically pertaining to the b-spec. There is a page specifically for the r-spec. Can I use the specifications for the r-spec to determine the appropriate driver I need? If so, my options are the HLG-80/100/120H-54.
I'm sorry for such a long winded question. I just built my first light with 4 qb 120's, but there was so much information out there I was able to find plenty of references. But this seems like a relatively new light, and I want to make sure I pick the best option for my current situation. Do you guys like running your drivers pretty close to the max wattage you are using, or get a slightly larger driver and dial it down? With the hlg-120 I would still need to run a heat sink at half power, but the 100 would be pretty close to right on the money. I guess my biggest question is how many watts do you think I'll need for a 2x2 veg cabinet. Flowering I've read somewhere between 30-35'ish, but I'm not sure for veg.
Thanks for all the help, if this question has been answered please forgive me and point me in the direction of that information.
 
Last edited:
LarsVegasNirvana

LarsVegasNirvana

Well-Known Member
GrassBurner said:
Hey hows it going. I just purchased a qb 288 b-spec for my veg cabinet. The cabinet is 2'x4'x4', but I'm thinking of splitting it up into a 2x2 veg cabinet, and a 2x2 cabinet for my supplies and tools. I havent been able to find much information on HLG's website specifically pertaining to the b-spec. There is a page specifically for the r-spec. Can I use the specifications for the r-spec to determine the appropriate driver I need? If so, my options are the HLG-80/100/120H-54.
I'm sorry for such a long winded question. I just built my first light with 4 qb 120's, but there was so much information out there I was able to find plenty of references. But this seems like a relatively new light, and I want to make sure I pick the best option for my current situation. Do you guys like running your drivers pretty close to the max wattage you are using, or get a slightly larger driver and dial it down? With the hlg-120 I would still need to run a heat sink at half power, but the 100 would be pretty close to right on the money. I guess my biggest question is how many watts do you think I'll need for a 2x2 veg cabinet. Flowering I've read somewhere between 30-35'ish, but I'm not sure for veg.
Thanks for all the help, if this question has been answered please forgive me and point me in the direction of that information.
Click to expand...
I like running my drivers dimmed down a bit, just so they aren't as hot and (in my mind) last longer. I also use 2x as many quantum boards as are suggested for my area because they are more efficient when they're dimmed down because they run cooler.

I'm not sure how much you need exactly, but I'd go with 60-65w for a 2x2 veg. But QB120's are less efficient than QB288's, so maybe like 70-80w? 100 is more than enough. I use 100w with a v2 bspec in a 3x3.
 
GrassBurner

GrassBurner

Well-Known Member
Not sure who yall purchase your drivers through, but TRC has always gone above and beyond for me. Automatic follow up calls from technical support regarding your product, fast shipping (but not cheap), and they have excellent customer service.
I had ordered a driver through them last night, and recieved a call from them this morning. Driver was out of stock, but they were able to find a company with stock, and direct me to them. Driver is on it's way :hump: You dont often find great customer service, but TRC is a company that definitely takes it seriously. Can't recommend them enough. Shipping seems a little high, but for the quality of service you receive, overall the price is a bargain. They were $5 cheaper to my door than the company they recommended, so they are competitive.
 
R

RamenToppings

Member
What is a better dimmer I can buy? I got these 100k knobs but nothing to house them in, I don't want to use these.... Is there something like what comes with the hlg kits that has housing.

I want what is in this picture but do not know how to find it
1589593373391.png
 
Last edited:
You must log in or register to reply here.
Top