Introduction: Hacking the $ Store Lamp Into a Usb Lamp

Picture of Hacking the $ Store Lamp Into a Usb Lamp

I was at Dollar Tree and found a nice little lamp that would make a nice USB computer lamp.  Here is what I did

Step 1:

Picture of

Materials needed.

1.  Lamp from Dollar Tree
2.  USB cable from Dollar Tree
3.  12 ohm resistor from Radio Shack Catalog #: 55049314
4.  Soldering iron, solder, and flux
5.  Electrical tape
6.  Standard hand tools

Step 2:

Picture of

1. Open the case by removing 4 screws on bottom
2.  Snip the resistor on the terminal side (not the switch side)
3.  Snip the red lamp wire from the battery terminal

Step 3:

Picture of

Snip end of USB cable.  Prepare the red and black wires for soldering.

Step 4:

Picture of

1. Solder black USB wire to the snipped end of lamp resistor.
2.  Solder the 12 ohm resistor to the red lamp wire on one end
3. Solder the other end of resistor to the red USB wire
4. Insulate bare electrical connections with electrical tape or hot glue.
5. You may need to snip a hole into lamp case to run usb cable out.

Step 5:

Picture of

Reassemble and test.   I went outside and filled the battery compartment with small pebbles for ballast so it won't tip over as easily.

Step 6:

Picture of

Enjoy.   For those of you who need to know the electrical specs.  Here they are.   Originally the 3 AA batteries produced 4.5 volts.   The 12 ohm resistor decreases the 5 volt USB to a little less than 4.5 volts for the lamp.   Total current draw that I observed was about 88ma.

Comments

deathofme (author)2014-08-28

I did this hack but used a 9v. Way brighter just changed the resistor to accommodate the higher voltage.

acuchetto (author)2014-05-04

Ha! I did this too. Good idea about the rocks for ballast. I'll have to try that.

PCfreak (author)2014-04-30

cool. i did the same thing 4 mons ago just havent posted a instructable yet

About This Instructable

2,036views

27favorites

License:

Bio: Saving the world..... without a cape.
More by aaahotdog:DIY Drip Coffee BrewerRemoving labels from pill bottles and other bottlesTotally Free Upcycling Item So Don't Throw Yours Away
Add instructable to: