Instructables

How to convert a IKEA Jonisk lamp with LEDs

Picture of How to convert a IKEA Jonisk lamp with LEDs
I bought a IKEA Jonisk lamp to have in my living room, but when i powered the lamp up with a 60W bulb it become hot as ****. I started to figure out how to convert it to a LED-lamp instead.
I found a company that sells high powered LED modules (www.leds.de). I ordered 3 SEOUL P5 RGB LED that already was mounted on a PCB. For controlling the LEDs I choose a PIC16F628A and 3 TLE4242G constant current sources. After that I found a remote controlling kit laying around in a box, so I added it to the project. By controlling the current sources with a uP and PWM, I now can blend the lamp to almost any color I want. And it use much less power now and generates almost no heat.
This project was not supposed to be on Instructables.com from the beginning so there is a lack of photos in the instructable.
 
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Step 1: What you need

1 IKEA Jonisk
3 Seoul P5 RGB on PCB
3 TLE4242G
1 PIC16F628A
1 LM78L05
some SMD resistors and capacitors
a PCB designed by my self and produced with your favorite method
a sheet of copper, 1mm thick
RXF-4303D and TXF-4311R remote control kit ( I had on laying in my box of spare parts :) )
Power supply 12V 1A
Thermal grease
PIC programmer ( PICkit 2 )
Wires, nuts.......

Step 2: Dismantle the lamp

I started with the dismantling of the lamp to make some measurements for how much space I have in the lamp.

Step 3: Make the PCB

Picture of Make the PCB
ikea_led_v3_pcb.png
I use EagleCad for all my projects that needs a PCB.
The make the PCB with your favorite method, I use the toner transfer technique and Hydrochloric Acid + Hydrogen peroxide to etch the PCB.
IKEA_led_v3.pdf(485x474) 79 KB

Step 4: Make the Heat sink

Because the 3 current sources and the 3 RGB LEDs make some heat I had to make a heat sink. I took a piece of cooper sheet and cut out a circle that is the same size as the PCB

Step 5: Start to populate the PCB and heat sink

Picture of Start to populate the PCB and heat sink
Start to populate the PCB with all the SMD components and visual inspect all your soldering. After that is complete, mount the PCB on the heat sink and mount the LEDs and all the hole mounted components.
BibiNYC3 years ago
Hi Lond, I too am somewhat confused. What is the difference between just using a standard LED "mood" bulb screwed into the original fixture, and the mod you are suggesting? Is the regular store-bought colored light not powerful enough? Or is it all about tweaking and modding yourself?
I should add that I really LOVE the end result of what you did, but sadly I'm definitely not a DIY person, so most of what you are saying is a lot of mumbo jumbo to me (e.g. I have no clue what a PCB is). So if I can reach a similar result without using any tools, that would be great. Otherwise, perhaps you can explain it to me in layman's terms? And then I will have to call a friend... :)
Thank you!
sxa2udo3 years ago
you could just use an led light bulb
lond (author)  sxa2udo3 years ago
Haven't found a led light bulb that are more powerful then my lamp.
With white colour and no diffuser it's brighter then a 100W light bulb. And I like to create and modify things, so just to change the bulb wasn't fun enough.
drosa-13 years ago
Thank you so much Lond. Now I finally opened it.
I'm interested! How far did you get with the instructable? Tell us more...
peppers4 years ago
Great project!!
...but source code??

lond (author)  peppers4 years ago
The source code is constantly evolving, so when I learn something in a other project I update the source code for the lamp. The current code I use is for the updated lamp.
slaitch lond3 years ago
Please don't take this as criticism, as I do in fact quite like your final product, but there is something terribly wrong about the statement "I update the source code for the lamp."
bowBIRDIE4 years ago
LOVE it !

i'm a big fan of the "as is" corner of Ikea & are often drawn to their light fittings (missing a base or shade etc) to reuse with other found objects...

i find LED/electronic assemblage abit too confusing... *are they're ready-made LED light fittings available? (like a pendant fitting with bayonet holder that you add your own shade to etc)

thanks : ) 
odinyk5 years ago
Nice cool project
I have been trying to open my Jonisk lamp. I'm concerned if I try to pull it off I'll break the polycarbonate. Does it twist or pull off?
lond (author)  melartweaver5 years ago
Twist is the right way to open it.
I finally got it, thank you! It was really stuck--probably being on the floor for a year in my neighbor's house didn't help!
dark1805 years ago
Really cool project, If i could only understand half of whats going on here :P any suggestions on were i should get started?
lond (author)  dark1805 years ago
Or you can use this project as a starting point for a led light controlling project. The heart in the project are the 3 TLE4242G that controls the current to the led:s. TLE4242G is a current sours ic that can handle up to 42V and 500mA and be controlled by PWM from a µP or a 555.
lond (author)  dark1805 years ago
What do you want to know? Controlling the led:s or anything else about the project?