How are you supposed to pick a driver?

70% is not really what i was looking for.

are you familiar with the differences of running a chip at 700, 1050, 1400, 2100 mA, in regard to efficiency as well as thermal management?
 
CobKits said:
70% is not really what i was looking for.

are you familiar with the differences of running a chip at 700, 1050, 1400, 2100 mA, in regard to efficiency as well as thermal management?
Click to expand...

Guess I'm not. I've heard that 1400 was the place to be though.

Greengenes707 said:
http://www.straightroadelectronics.com/mean-well-usa-inc/HLG-240H-C1750B
Click to expand...

I hope my european retailer has that one, but thanks for the recommendation! Any particular reason for that one?
 
both the 1400 and 1750 are popular because they operate the CXBs in a place thats a good balance of cost and efficiency

in other words, at 700 you have higher efficiency than 1400 but need almost twice the chips
at 2800 you need a little more than half the chips compared to 1400, but are taking an efficiency hit

1400-1750 mA is under a buck a watt for chips and will give good results
 
CobKits said:
both the 1400 and 1750 are popular because they operate the CXBs in a place thats a good balance of cost and efficiency

in other words, at 700 you have higher efficiency than 1400 but need almost twice the chips
at 2800 you need a little more than half the chips compared to 1400, but are taking an efficiency hit

1400-1750 mA is under a buck a watt for chips and will give good results
Click to expand...

So, if I settle for 1400 what more is there to consider since there's so many options? It's kind of confusing..
 
If you don't need new, you can always recycle drivers from other units.

I think of all the DIY parts, this is the one you can save money on with the least impact. That money can go to more chips.
 
CobKits said:
depends on:
-how many cobs you want to run
-if you need external dimming
Click to expand...

I plan on running 4 cobs, perhaps 5. And I plan on having a dimming switch. Just to keep it on low during veg or something. If that makes any sense.


PhotonFUD said:
If you don't need new, you can always recycle drivers from other units.

I think of all the DIY parts, this is the one you can save money on with the least impact. That money can go to more chips.
Click to expand...

I don't trust the chinese drivers. I'm not really experienced with this, but I've heard a lot of bad about the chinese drivers.
 
HandyGringo said:
I plan on running 4 cobs, perhaps 5. And I plan on having a dimming switch. Just to keep it on low during veg or something. If that makes any sense.




I don't trust the chinese drivers. I'm not really experienced with this, but I've heard a lot of bad about the chinese drivers.
Click to expand...

I have heard a lot of bad things from people about sushi but I still eat it.

The mw drivers are big, bulky and might be overkill for some. They are ip rated so you can pretty much drop them in water but you do pay for all of that.

In my opinion, the more that goes into light creation the better. If I can re-use some old components rather than buy new all the better,
 
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