Here's some more 50c infomation...
I have one light on a 185W mean well 54A running at 53.7V and 3A for a total of 161W the temp is 70C but it's a 32C day. The Volt pot is on full and the current pot is on 9/11
The other one is what is puzzling me, it seems to be drawing more power than the driver should theoretically supply, which is supposed to be 3.45A. I have the Volt pot on full but I've turned the current pot up to 10/11 so it's still a notch away from full and moving from 9 to 10 has made a huge difference.
The second one is now running at 55.5V and 4.18A for a total of 232W. How is this possible? Temperature at the back is 80C
EDIT: temp moved up to 88C but a better directed fan got that down to 85C which is the max recommended temp. I rechecked V and current and even though the temp rose the V stayed constant at 55.5 and the current was 4.16 so no thermal runaway.
EDIT: Fan directly on lamp has the temp back down to 75C however it's still drawing 4.2A @ 55.6V for over 233W from a 185W driver, which is probably pulling 260+ at the wall.
Mind you it's particularly hot today so that 85 is only going to go down, but how am I drawing 4.1+ Amps? that is close to the max rating of the board. Should I turn it down?
EDIT: update.
With the Voltage pot on maximum the Current pot is very sensitive at its upper range. I have discovered that these heat sinks are pretty efficient, by putting a fan blowing directly on them I've got the temps down to 55 and 60C, with them running 3.5A@55V and
[email protected] so that's 190W and 210W for a total of 400W pulling 450W at the wall.