Hi guys,
I’d like to present you one of my ongoing projects. It’s supposed to be a portable worklight based on a 10W 1000lm COB LED stuck on a nice big radiator. The project is now in “alpha” phase, meaning it only has:
-Custom PCB
-Boost module, I will run the LED at 13.5-14.5V to give about 1800lm. I ran that LED at 40W without a problem.
-Mini LED dimmer/controller. All kind of modes(strobe, pulse, etc), super easy dimming, power on/off.
–40mm Cooling Fan
–75oC NC thermostat with a relay to basically make it NO and power on the fan when the temp hits 75 degrees, not cut it off.
–100oC thermostat that shuts everything down when the temp is reached(I don’t think it’s going to happen, but hey… better off than sorry)
-Power LED. Blue, ran at 3.5v from the 12v input via a 470ohm resistor.
-Thermal warning LED. Red, same thing, it kicks in when the fan does.
http://imgur.com/a/poEM6/embed
Here’s a video with the first test.
What’s next:
-Shrink the PCB to 1/3 of the current size to fit it on the back of the radiator.
-Move the 100 degree thermostat near the LED so it only cuts it off, leaving the cooler on so it will eliminate heat faster.
-Custom case made out of Plexiglass, with 5.5x2.1mm DC power plug
-Tripod screw at the bottom for “nearly everywhere” fixing
–3-4x18650 attachable battery pack that simply plugs into the DC female plug when connected.
The biggest problem will be to shrink the PCB.