This is a continuation of this thread. I figure I should start off with what everyone wants to see, Beamshots. :D Mouse off for a picture of just the light, mouse over to see a Stanley Fatmax spotlight overlain (in the top right) just to compare the two easily. (Note: See this thread for beamshots of the fatmax at 350 yards)
So now what type of light is this? I'll admit I was BSing you guys about a host, as of yet I have no host of any kind. Gords got the bridgleux array part right, it is the C9000 array. I have it attached to a copper CPU heatsink with a fan (courtesy of Texaspyro), the whole thing is powered off of a boost driver that boosts the 12 volts (from a 4S LiFePo4 car battery sized pack) up to the 33 volts needed to run the battery. It draws a measured 15 amps from the battery for a approximately 5 amps to the LED (at ~30 volts!).
The heatsink
The Driver
The LED and the reflector
And a quick picture of everything together.
And I will end this with a picture of what happened when I attempted to measure current with something that had a bit too much resistance.
Orsm. I love the last shot. That reflector must be massive. I know a member here who has a housing that may fit that reflector but sadly I cant say who. If I sat down and took a packet off Bex I could probably understand all your current talk but I’ll just nod my head and go wow, That lots off melting power you have there. Looking forward to the continuation. Well done so far and cheers.
It is intended for SST-90 LEDs. I had to cut a couple mm off the base to get the opening to fit the Bridgelux array. They are now making an even bigger reflector, but it is smooth. Not sure how well that will play with the array (but will find out).
I polished both the star and the heatsink with progressively finer grits of sand paper and then applied a very thin layer of artic silver and clamped it overnight. Heat conduction seems to be excellent, the heatsink gets pretty hot after just a second on (if the fan isn't running)
