Quantum Board Driver (QB132) driver question

[chinaCat86]

I am purchasing 4x Qb132 and have a question about the driver. The manufacturer along with most discussions are powering them with some variation of HLG-240H-36 or HLG-240H-C1400. But this would mean 60watt per board instead of 75w for which they are rated. Why?

Could I not purchase the HLG-320h-36 and a dim it down about 5-10%?

I ask because I am already under powering my 4x4 grow area. With only these 4 qb132s and one qb120 that I already have. I plan to add more in the future, but I like to make the most of what I’m purchasing.

Finally, I’m not seeing good options for these drivers on amazon. Is mouser a good alternative? It says products in stock so I can ignore the lead time?

Recap:
1. Why do most people seem to run these at 60w instead of 75?

2. Can I safely power 4 of these with a hlg-320h-36 and just dim it slightly?

3. Is mouser a reputable place? Does this community have a preferred driver vendor? (Time is of the essence, would like to switch to 12/12 ASAP)

4. Bonus: could someone explain the difference between a and b models? I don’t plan to dim them more than once, so saving money on an additional remote dimmer would be ideal.

5. Bonus: I grok the difference between series and parallel but what do most of you prefer. Series seems the safer option.

 

[NevadaBudz]

I am purchasing 4x Qb132 and have a question about the driver. The manufacturer along with most discussions are powering them with some variation of HLG-240H-36 or HLG-240H-C1400. But this would mean 60watt per board instead of 75w for which they are rated. Why?

Could I not purchase the HLG-320h-36 and a dim it down about 5-10%?

I ask because I am already under powering my 4x4 grow area. With only these 4 qb132s and one qb120 that I already have. I plan to add more in the future, but I like to make the most of what I’m purchasing.

Finally, I’m not seeing good options for these drivers on amazon. Is mouser a good alternative? It says products in stock so I can ignore the lead time?

Recap:
1. Why do most people seem to run these at 60w instead of 75?

2. Can I safely power 4 of these with a hlg-320h-36 and just dim it slightly?

3. Is mouser a reputable place? Does this community have a preferred driver vendor? (Time is of the essence, would like to switch to 12/12 ASAP)

4. Bonus: could someone explain the difference between a and b models? I don’t plan to dim them more than once, so saving money on an additional remote dimmer would be ideal.

5. Bonus: I grok the difference between series and parallel but what do most of you prefer. Series seems the safer option.

Im new here also your best bet would be to go to the lighting section tag Chip Green, Nizza, or torontoke theres many knowledge ppl that can help you there! But yes most run there leds @75% of max your qbs are max rated 2100ma you could run the 240h c1400 A or B version in series for around 200w total. Digikey or Arrow is your best bet for drivers! The difference is the A version has a built in dimmer on it that allows you to only dim to 50% the B has external leads that you attatch a 100k ohm potentiometer with 10k resistor to allow 0-100% dimming there only 5 or 6$ just have to solder them on or leave the leads open for full power! As far as series or parallel everyone has there own opinion, parallel theres the possibility of thermal runaway burn shit up! series your dealing with higher voltage but i prefer series up to around 240v my opinion & easier to wire! Good Luck Peace