Desktop energy seed lamp

Step 37 Final product

Voila!

I am very happy on how this turns out!

It is very bright and puts out a lot of light and it is perfect for night light or ambiant light.

Pros
- Interchangeable lamp design.
- Nice looking.
- Give out a great light that is useful.
- You girlfriend will like it.

Cons
- All the batteries are in parallel so if there is one weak battery, it will suck down the juice of all of the other batteries.
- The lamp need to be activated every night. I am presently working on a circuit that would power the joules thief at night.
- No dimmer, I could think about that. I wonder if we could implement that in the joule thief. Playing with the coil. Changing the ratio of the transformer...

Here is how I did the second lamp design
http://www.instructables.com/id/Universal-lamp-shade-polygon-building-kit/

Comments

[alenoe1974]

Very good project, it's beautiful, witty, decorative ... what else? EXCELLENT!

[diegao_garcia]

its nice if you get one of those power supplies and use it instead of the batteries, you can put a voltage regulator transistor, for example LM7805 that will get anything about 6V to 30V and convert to 5V output...<br/>and you get "ilimited" energy for you led lights instead of recharging the batteries everyday !<br/><br/>=]<br/>

[gosub]

Very good job. Nice you got it all together. As the current is not that high you could simply add a variable resistor as a dimmer.

[robomaniac]

hello, I did try adding a variable resistor and it works. Then my boss told what is the point of adding a dimmer to a LED lamp that is there for ambiant light only? I told him that it is a neat feature to have just in case. Thanks Jerome

[gosub]

And it can save a bit of energy too. Except if you ground it. In that case the energy will be drifted to the... ground. The best way is too trim the resistor you added to the self. I guess. Yes it is a neat feature ;-)

[lewell]

Cool...Looks really nice.