These lights only cost me about $15 to make. I had most of the materials on hand though. The only thing I bought was the LEDs and the drivers.
Custom LED bars for a computer case.
6 Watts of Blue LEDs
Step 1: Parts & Tools
6x 1W LEDs
2x 3x1W LED Drivers
28" of 3/4" x 1/16" 90 Degree Angle Aluminum (could use 1/2" x 1/16")
Wire Scraps (about 4 ft.)
4x Pop Rivets
1/8" Expandable Sleeving (optional)
Heat Shrink (optional)
Hot Glue Gun
Needle Nose Pliers
Pop Rivet Tool
Step 2: Testing the LEDs
Don't run the LEDs at full power without a heat sink, they will burn themselves up.
Step 3: Straiten the LED Leads
The leads need to be straitened and bent slightly upwards so that the wires can be soldered to them without touching the aluminum heatsink.
I used needle nose pliers to carefully bend the leads.
Step 4: Mount the LEDs
Mark the center and 2" from both ends.
Mount the LEDs with a small amount of super glue. Don't use the super glue gel, it's too thick.
Thermal epoxy would work too, but it's expensive.
Make sure the leads all go the same direction.
Step 5: Solder the LEDs Together
Drill holes just past the LEDs on the ends to pass the wires through.
Secure the connections with hot glue, or silicone to prevent them from breaking.
Step 6: Prepare the LED Drivers
These drivers work with AC or DC so there is no polarity on the inputs.
The power cable was made from a case fan power adapter.
I removed the extra connector to save space because I have plenty of molex connectors on my power supply.
Only the 12V wire and one ground wire are needed (Yellow & Black).
I put the drivers in a small plastic case and drilled two holes for the wires.
The white wires are LED ground and the pink wires are LED positive. They are all connected to the 4 conductor wire.
I connected a 2 pin header connector in the line. It goes to a switch in my case.
I slipped the last of my expandable sleeving, which I had left over from building the computer, over the power wires and put some heat shrink over the connection in the middle.
Step 7: Check for Smoke (Testing the Lights)
The LEDs are blindingly bright. They light up the entire room.
These LEDs don't have a greenish tint to them it's just my camera.
Warning: Don't Look Into The LEDs
Step 8: Prepare for Mounting
If your case doesn't have any suitable mounting holes, you may have to get a bit creative with some zip ties.
The mounting brackets are made with the rest of the aluminum. There are four 1" pieces.
They have holes drilled on both sides, and are pop riveted to the LED bars.
Step 9: Mounting
The LEDs are connected to the switch on the front panel that normally controls the front fan LED. I inserted a bent header pin into the fan LED connector so that it still lights up.
The LED drivers are mounted to the back side of the case with double back tape.
Be sure that the LED bars are attached securely, it would be bad if they fell into other components in the case.
Warning : Always wear an anti static strap when working inside your computer.
Step 10: Finished
The LEDs run cool even after several hours, all six LEDs could be mounted on a single 12" piece of aluminum.
They light the inside of the case very well. They also light the area around the computer, however it's not too bright.