Instructables

Weekly Project: Cordless Lamp

Picture of Weekly Project: Cordless Lamp

Ask any interior designer to list the most despised elements of today's home furnishings and you probably won't be surprised to learn that ranking high on the list is the ubiquitous electrical power cord. In the average modern home, clean floor plans are quickly littered with power cords draped over tables, cable tripping hazards clogging room flow, and electrical wall outlets bristling with plugs, cords, and transformers.

Yes, there have been some significant improvements with wall-mounted TVs receiving both power and cable outlets out of eye view. Likewise, hollow baseboards have become cable raceways for moving cords discretely around a room's perimeter. Nonetheless, when a lamp plops on a table, a trailing power cord quickly tethers the appliance to a location firmly anchored to the case good's edge.

It's time to sever the tether. Powered portable task lighting with onboard battery systems liberate tabletops and floors from unsightly cord clutter, letting the room's main illumination come from embedded overhead lighting.

These cordless lamps, however, don't have to be campground lantern rejects repurposed for indoor use. Rather, fashionable incandescent bulb lamps can shed their two-pronged tails and accent any interior design scheme as standalone cordless lamps.

While just about any lamp can be transformed into a cordless lamp, table lamp kits from IKEA Home Furnishings are ideal for this project.

 
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Step 1: How to Build a Cordless Lamp

Picture of How to Build a Cordless Lamp

Time: 2 hours
Cost: $23.23
Difficulty: Easy

Parts List


  • (1) STORM Table Lamp ($9.99; IKEA STORM)
  • (1) 5V DC to DC Step Up - 1xAA ($10.95; Spark Fun Electronics #PRT-08248)
  • (2) Bright White LED, 5mm ($.65; All Electronics #LED-121)
  • (2) 100-ohm 1/4-watt resistor ($.99/5; RadioShack #271-1311)

Miscellaneous
  • wire
  • solder
  • double-sided foam tape

dextercf4 years ago
The link for the LED's wont work.. :(
This would be a cool thing IF, solar panels were charging the battery, thus, MORE environmentally friendly! I just saw an AD for Water powered Clocks, I wonder if water powered lamps and water powered rechargeable AA battery chargers are next.... hmmm? God Bless James Doohan, he went up into space but crash landed in the mountains, he loves a good adventure!!! :D
I have a water powered clock, bit reluctant to take it apart tho, maybe I will one day...
12V btop4 years ago
it's only metal in the water! they are not powerful enough to light an led just to let you know before you ruin it!
Yes but batteries have a limited life,Maybe a 400 farad capacitor, According to someone here,That holds about 1 amp,980 or so miliamps
marc_alain6 years ago
Where did the paper shroud come from? Despite the criticisms, the concept is worthy.
maroneyi6 years ago
Make it rechargeable? That would be aweseome. Great instructable though.
Using rechargable batteries could be a good option!
Cool! im on the popsci website! :)
PopSci6 years ago
Yeah, pair these with a couple USBCells like Dave suggests on Page 3 and you've got yourself a fairly potent mobile desk lamp. The USB cells only take about an hour to re-charge—really handy little gadgets.
crapflinger6 years ago
trading an "unsightly cord" for having to use/change batteries all the time isn't exactly that great of a trade off....when you've got to get up in the middle of the night to pee...and you can't get that light to turn on because the batteries are juiced...you'll see the errors in your ways hehe maybe powering the lamp via induction...with an induction coil recessed into the top of that end table...then run the cord discreetly inside the end table...that would keep the cord out of the way, remove the need for batteries, and employ induction...which is super cool
gotta agree with LasVegas. It's a great idea, but it will have to have more power.
LasVegas6 years ago
And exactly what is this lamp supposed to light? Other than functioning as a very dim night light for maybe an hour or so, theres not enough light for anything remotely practical.
ferroucious6 years ago
I had an idea for this a little while ago. In fact what I was supposed to use is on my picture, but I could never find a soldering iron to put the whole thing together. One difference though is that I made a base out of an old gameboy charger that charged a battery that was hidden in the base of the lava-lamp like structure. It was sort of like Zujus' Blue Heart instructable.
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