DIY Passive cooling with PIN Heatsinks SST120 and SST140

Big smo

Well-Known Member
Is what for sale? The mod 420 frame?
I think the one cob_nut was talking about is the ones timber might be selling or eventually selling. Looks like 1/8" alum plate with 2 diag crosses and 4 rings in each corner to hold the heatsink. Center cutout for the driver. Looked pretty sweet imo and fairly inexpensive to manufacture.
 

pop22

Well-Known Member
I think that's Northern Growlight frame..?

I think the one cob_nut was talking about is the ones timber might be selling or eventually selling. Looks like 1/8" alum plate with 2 diag crosses and 4 rings in each corner to hold the heatsink. Center cutout for the driver. Looked pretty sweet imo and fairly inexpensive to manufacture.
 

HydroRed

Well-Known Member
@Big smo They had the link up for the feebay auctions in their thread then took it down to lower the price. I think it was $65 + $16 ship, then read they lowered it to like $50(?) + ship. Plus it comes with hangers and hardware now.
You can tell they got some thought into it. Perfect for the guy who doesn't have time to configure/drill/tap 6 or 8 200W units but still wants to keep the components diy.
 

CoB_nUt

Well-Known Member
The frame I was speaking of was on @robincnn 's site. Northerngrowlights. I'm not sure they are for sale yet. I could be wrong though.

*edit mevermid. airwalker linked the frame . It is the same robincnn and bobby.
 

robincnn

Well-Known Member
Robincnn will you list the specs on the citizen cobs you offer. Wattage with the suggested drivers or efficiency? Also I see the 35 mm heat sink is compatavle with the clu48 but driven at different wattages will they still cool enough?
The link to Citizen datasheets is there on website.
120mm pin heatsinks can handle 1050ma so 4x 52V Citizen cobs with HLG-240H-C1050
105mm pin heatsink for 700ma so 4x 52V Citizen cobs with HLG-120H-C700
Efficiency detail here



Another question, do you have it a dial on your pot for the different amperages? I have yet to figure that out, as I run my cxb 3590's and 3070's wide open. I have only dimmed twice maybe. It's good to know I could ramp up the pot if wanted to 1400.
BTW, i'm really diggin' that new frame design you and bobby worked out. Nicely done.
Thanks.
Not sure if i understand your question with pot. Yes you can adust the pot to control the current and the wattage. Dim +/- open is fine.
 
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