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March
24
Filed Under (geek, Things I Made) by Travis on 24-03-2010

Working on improving the lighting for Jacki’s Slide Lamp. I got some PCBs a while back from here. They are made to run LED arrays. If you don’t want to run a ton of LEDs you can cut the board in half and use jumpers to fill empty holes. At least that’s what I did. We’ll see how it works in the long term.

Here is a board I did with half bright white and half soft white….

Leds lit up on the PCB

Not asleep yet? More after the jump….

The little work area that I setup on the kitchen table.

Work space

Top of one of the PCBs. This one was all bright white. You can see where I cut the board in half on the left. It isn’t very pretty, but it was the first one cut. Now I know the best way is a hacksaw.

Top PCB

A look at the bottom of the board. You can see my not very good soldering and the little jumpers I made out of the metal that I cut off the LEDs bottoms.

PCB Solder side.

An upskirt shot of the PCB mounted in the lamp….

Bottom of the lamp PCB

And finally the finished lamp!

LED Slide lamp

This is a much better solution than anything I have used in the past. I really like being able to do a little math, solder stuff up and it works great.

Stumble it!
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Comments

Katie on 24 March, 2010 at 4:35 pm #

They look like light brights on the board.


Julia on 9 December, 2011 at 1:12 pm #

is there a way to make solar lights using the PCB’s or something similar?


Travis on 11 December, 2011 at 10:42 am #

Short answer is yes.

Long answer is that solar panels are kinda goofy to use to power LEDs. All the PCB is doing in my lamps really is giving me a convenient way of holding the LEDs. The problem with solar panels is that the voltage will fluctuate depending on how much light they are getting. That is ok for the LEDs as long as it doesn’t go over the maximum. If it goes over the max then the light with burn out.

Most of the solar lamps that I have taken apart use the panel to charge a battery and then the battery to run the LED. That way any power fluctuations are absorbed by the battery and a constant (at least till the battery dies) voltage goes to the LEDs.

An easy way to make something would be to get a cheap yard light and rip the guts out. Then you could build it into whatever you wanted.

Cheers,
Travis


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