Pin heat sink for 1.05ma, room to grow?

[captain crunch]

Im wondering if I should go with the sst120 or sst140. I'm going to be running my cxb3590's at 1.05ma, but would like to have some wiggle room I case I decide to upgrade drivers some day to 1.4ma.

I think I'm leaving toward the sst140 and I'm just curious to see what others have to say. I'm guessing you can't really go too big with passive cooling?

 

[CobKits]

damn thats baller... thats gotta be 210 lm/W

j/k - im sure you meant 1050 and 1400 mA

sst120 can easily handle 1400 mA. 140 can do 2.1A

but yes never too big really (thats what she said)

 

[captain crunch]

damn thats baller... thats gotta be 210 lm/W

j/k - im sure you meant 1050 and 1400 mA

Goddamnit.....lol

Than you. Maybe I can save a little here.

 

[sixstring2112]

i went with the 140mm because it gives me flexibility to use higher currents with 36v chips and also use the 72v chips up to 75w.

 

[Airwalker16]

Im wondering if I should go with the sst120 or sst140. I'm going to be running my cxb3590's at 1.05ma, but would like to have some wiggle room I case I decide to upgrade drivers some day to 1.4ma.

I think I'm leaving toward the sst140 and I'm just curious to see what others have to say. I'm guessing you can't really go too big with passive cooling?

Looks like you've already answered your own question. Bigger is better if you plan on upgrading.

 

[grouch]

You can always upgrade to active cooling if they get to hot in future applications. Either way, I'd go with the 140's

 

[captain crunch]

140's ordered today.

Waiting on invoice from kingbrite for COB's, holders, reflectors, and drivers.