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Build your own blue LED light box to combat SAD and winter blues. Sleep better and wake up with more energy while exploring the world of high-power L...
According to light box manufacturers 446 to 477 nm wavelength light is supposed to be the most effective for treating seasonal affective disorder (sec...
Here's what I used and where I got it. Luxeon III Stars, (Lambertian) 3 blue (470 nm), 3 royal blue (455 nm) - Luxeon.comBuckPuck 700 mA driver (0302...
The LEDs generate a lot of heat, so I mounted them in an aluminum base that could also act as a heatsink. Cut the aluminum to size and mark where you...
Round the edges of the base and then sand it. I sanded with 100, 200, and 320 grit paper.
Clamp pieces of wood to the front face of the base to keep it flat. Bend it into an upside-down "7" shape.
The back side of the LEDs is not electrically neutral, so they need to be isolated. Cut thin pieces of mica, which is thermally but not electricall...
Put heat grease on both sides of the mica and sandwich it between the LEDs and the aluminum. Attach the LEDs with the nylon screws.
Solder the LEDs together in series and connect them to the LED power supply. The Buckpuck power supply will drive 700 mA up to its maximum voltage. ...
If you want to control the light from an external source, like a dawn simulator, bend up the backside corner and drill a hole to mount the 1/8 connect...
Hot glue the DC power supply and bread board to the base.
If you're going to put the light on a nicely finished wood surface, put some felt feet on the bottom.
Bask in the blue glow of the LEDs. Some people use them in the morning to wake up, while others use them in the evening to help go to sleep. Run a f...
"Blue and RoyalBlue power light sources represented here are IEC825 class 2 for eye safety." http://en.wikipedia.org/wiki/Laser_safety#Class_2 This means that LED can cause damage is the user stares at them. HB LEDs should always have a diffusor in front of them.
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