RGB LED Moodlight in 10 Minutes!





Introduction: RGB LED Moodlight in 10 Minutes!

Here is my 2nd. Instructable. A very quick one! ;-)

I will show you how to build a nice 3-RGB-LED mood light in nearly 10 minutes.

What did you need?

- battery powered LED touch-light
- slow rainbow effect RGB LEDs with slow automatic color cycling (or fast if you like ;-)
- small screw driver (depends on your LED touch-light)
- soldering-iron

Step 1: Look What Is Inside the Touch-light

First I remove the batteries from the bottom side of the lamp.

With my fingernails I can grip between the upper silver and the lower black part and simply lifting it up.
Then the rest of the parts dissolve them self. Really cheap build lamp ;-).

On the 3rd picture you can see the small PCB with 3 white LEDs and in the switch in the middle.

Step 2: Heat Up the Iron

Now you should remove the 3 LEDs with your soldering iron.

Then replace the three LEDs with the rainbow LEDs.
Don't forget that the long legs of the LEDs are the anode pins. They have to connect to the positive voltage.

Step 3: Test and Rebuild

Now insert the batteries for a quick test and then rebuild the parts.

If you like it you can place the semitransparent paper between the reflector and the glass for a smoother light.

If you switch the light on all 3 LEDs starting with the same color. But with the time they drift to different colors because of their tolerances.

Thats it. Have fun with it!

PS: don't forget to switch off the soldering iron ;-)



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    I know this sounds stupid but how do you change the colour? do you press it or what???

    The LEDs are automatic colour changing LEDs. Each of them has 3 LED chips inside red, green, blue and a control circuit chip. (You can see these chips on the first picture with the macro shot of one of those LEDs. under the lens you see the control chip and on the lower side you see the three LEDs. Thank you for your interest.

    there is different kind of leds changes colour according to:
    • depends on time, (changes by it self)
    • electric way if you swap + and - it changes colour
    • according to watt/volt im not sure.

    hey do you know the name of the second type you mentioned??

    bicolor led


    sorry I don't know, try to asking "low power colour changing led" or "two colour led"

    The first image looks real cool, is that just a drinking glass over the top of the lite?

    No its a single LED taken very close up.

    so is there a difference between a RGB slow flash LED and a RGB color cycling (slow)? i cant find one that says color cycling they all tend to say 'flash' but flash makes me think it wouldn't be a smooth transition to the other colors.