A friend of mine has tapped me to build 16x of the 480w setups for him this week. W00t!

Yeah, it was the thermal interface material. A big glob of Arctic Silver later and everything's groovy. 480w's of 4000k fury!

https://www.cdiweb.com/ProductDetail/G10114--graftech/594265/ I think that was the same one. Just trying to be "cleaner" and more professional then a big glob of Arctic Silver.. Max current is like 4400mA so I figured there would still be PLENTY of headroom. :( It might have been premature but I wen...

"Angle Iron" DIY hardware store special

Well shit, one step forward and two steps back... Turns out that BJB holder is super finicky and the COB contact pads are freaking tiny. After like 6 tries thinking I had it lined up, I finally got things in the right spot and she turned on... for 10 glorious seconds or so. Then the magic smoke got ...

I get conductivity everywhere but across the LED. Even when I use the ohm-meter on the COB itself? Is there any specific way to use a tester on a COB? I'm lost when it come to those things :/ How could I check? Its the specific brand [BJB?] to hold the CITIZEN COB, and the Heatsink is the proper pat...

320w / 2 COBS. They have a max rating of 524w however. Very little heat. Once after a power outage the Driver for the heatsink fans didn't restart. I touched the heatsink and it hurt/was too hot to touch. But the COB was still shining away seemingly unaffected. Wouldn't want to leave it like that fo...

30amp 240v circuit for things. They do have a very strong in rush load, but still not too much. Symptoms are nothing happening when I plug it in/turn it on. Local electronics shop tested my driver and confirmed it was outputting correctly. I even purchased a new (I'm going to build more anyway) COB ...

They are from led-heatsink.com IceLED active coolers. Need to purchase a 12vdc 1amp driver to spin them too.

Citizen CLU058-3618
Voltage [typical] 102.1

Absolute Maximum Ratings
Input Power(W): 524.6w
Forward Current (mA): 4140

HLG-480H-C3500B

Output:
Rated current:3500mA
Constant Current region: 68-137w
Open Circuit max: 170v

where did I got wrong? what do I misunderstand