USB powered LED desk lamp

Hi girls!
Today, a 5 min USB powered desk lamp. I had problems with the neon lights at work so I decided to build a quick and easy LED desk lamp that is powered by the USB port in my desktop PC.

Step 1 You need?!

1. A 1-3W LED on a star IMS, means insulated metal substrate, basically a piece of Aluminium + a PCB.
2. A lampshade, referring to the genius Jim Jarmusch, see here.
3. Some enamelled wire from an transformator, possibly some of the secondary coil, cause of the thickness. It has to be rigit enough to keep up the lampshade + the led (with PCB)
4. a small piece of plexiglss, 1mm thick 11mm x 30mm.
5. El. drill, soldering iron, 2 diodes...


I bought my tiny lampshade + LED @ Satisled.com , which I think is a pretty good an convienent shop (in China) - but well you know, that's just like, my opinion, man...

Comments

[samalert]

must say a very nice intelligent idea.........also i had doubt tat 5v to 1watt led.....it will b burnt isnt it ?

[Jorsz]

There are 2 Diodes soldered in row, voltage dropoff of 1,5V so there are only 3,5V for the LED.
But, i have to say, it gets hot as hell anyway. So a currentlimtator or a heatsink would be cool...

[JabariSmith]

This is a great Instructable! The pictures are very clear and the design is very original - I like how you made your own USB plug instead of stealing one from an old gadget. Thanks for sharing!