Simple USB table LED light

Yes. I understand that table light or usb light can be purchase outside easily. But why not give it a try during your free time because the stuffs you need to make this usb led light cost you less than $5. This usb led light will be able to assist your typing in the dark.

LED connection

Cut off one side of the usb cable and follow the diagram above to connect your spare usb cable to the LED. Take note in between the negative side of the LED and the nagative side of the usb cable there is a 100ohms resistor. The picture show a 47ohms resistor, dun use that use a 100ohms resistor is better.

This is how it look like.

The portion circle in red is heat shrink tubes, use this to prevent any short circuit.

Final product

This is the finished usb led light, you can design it further depend on how you want it to look like. To attach to a laptop you can use a clip or blue tag to stick it to the LCD screen then point it onto the keyboard.

Source: josepino